WEST AFRICAN EXAMINATION COUNCIL

GEOGRAPHY

2012-05-03T23:01:00.003-07:00

GEOGRAPHY QUESTION

1 a. Highlight any Four differences between Urban and Rural settlement [12 marks] 1b. Outline any Four favourable conditions for the growth of settlement [8 marks]. 2a. State Three advantages and Two disadvantages of air transportion [10 marks] 2b. Highlight Five roles of Road transportion in the promotion of Economic Development 3a. Describe any Three Factors responsible for the dominance of Light industries in developing countries 3b. Highlight any Four advantages of the concentration industries in urban areas of developing countries. 3c. Outline any Three disadvantages of the concentration of industries inthe urban areas of developing countries. FOR ALL CANDIDATES. ANSWER ATLEAST ONE QUESTION. That means you can answer 2 here 7a. Draw map of west Africa on it, show and namebr /> i. One french speaking country ii. One English speaking country iii. The capitals of the country shown in. 7ai.and 7aii. 7b. State 3 objectives of the Economic community of. West African states {ECOWAS} 7c. Highlight 3 problems hindering the achievement of the objectives ECOWAS 8a. Draw an Outline Map of Africa, onthe Map Locate and show= i . Longitudes zero 0 degree and 20 degree E. ii. Lattitudes zero 0 degree and 35 degree S iii. The Atlas Mountains iv. one Man-made Lake along the River Nile. 8b. Explain Five ways in which African Rivers are important. 9 Describe Lumbering Zaire under the following Headings a. Favourable Factors. b. Problem of exploitation. c. Contributions to the Economy.

OBJECTIVE

1-CCABDBBDAB10
11-ABCBBABBCC20
21-ADDDBDCADA30
31-CDCABBCDBD40
41-CCCCCCBDAC50

ENGLISH LANGUAGE

2012-04-29T23:01:00.001-07:00

ANSWERZ

Hello. Before I start my debate I would first like to thank my opponent
for posting such a well thought out rebuttal and for entertaining the
many points that I have brought up in my debate. I would now like to
start my construct by refuting my opponents points and revealing the
flaws and obvious disregard for human life that my opponent has
brought up in his speech.
First of all, my opponent said that gamers that killed them self because of
psychological trauma caused by video games. This is sickening! All people, no
matter if their IQ is low or if they are flipping burgers at McDonalds deserve to
live. Those people who, upon buying the game thought that the game would be
safe, that no matter how much they play the game, they would still retain some
amount of sanity. I would agree with my opponent, that if a person played a
game for hours upon hours that they should live with the consequences of being
irresponsible. But my opponent did not tell the whole story. According to the
American Psychological Association, or APA < http://
www.psychologymatters.org... > children who play violent video games have
increased aggression, violent video games stimulate the dopamine receptors in
the brain which cause children to actually become addicted to the game as one
would become addicted to heroine or methamphetamine, and since violent
video games are more engaging and interactive than other games they are
almost twice as addictive. Another doctor from the APA Doctor Anderson
determined that violent video games do increase violent feelings in young
children, and even in adults. The same study also concluded that violent video
games make children more impulsive and therefore more prone to act rashly
and jump off a building because of video game withdrawal. Because video
games are addicting, you cannot put all the fault on the individual. Some video
game manufacturers like Blizzard intentionally manufacture video games to be
addictive so they will sell more subscriptions and so

ANSWERZ
I am happy to note that you
have sought admission in the best school of your city.
You have asked about my school. I have taken
admission in SMD School. It is one of the reputed all
girls, schools of Bhopal. The school building is very big
and beautiful. It has thirty rooms and two big halls.
There are about 900 students and forty teachers in
our school. Our school library is quite big. We play
games in the evening. The students love and help
each other. The teachers are good and they not only
teach us well but also solve all our problems. I like this
school and the teachers very much.
Answer to number 5==>>If There's A Will,
There's A Way
`If there's a will, there's a way' is
one motto I would like
to make my own. The saying
means that if anyone was
determined enough to get
something done, that person
would always find a way to do
it.
I believe that determination is
the fighting spirit of a
person. Without determination, a
person would tend to
give up too easily in getting
what she or he wants. I
remember a time when I played
the piano and I could not
get the timing of the piece
correct. My exam was merely
two weeks away and I panicked
at the thought of not
being able to play the piece of
music correctly. I decided
that I should practise really hard.
I felt desperate and
grave because no matter how
hard I tried, I still could not
play it correctly.
I stopped playing for one
afternoon and decided to listen
to a tape in which the piece was
recorded. After listening
intently for several hours, I went
back to the piano and
tried playing the piece again. I
was extremely happy
when I got it right on my second
try. Everything seemed
clearer after that. The music
seemed to flow right out of
my fingertips.
Needless to say, I did pretty well
for my piano exam. From
then on, I believe a lot in having
determination. If I
wanted to accomplish even the
smallest task, I must not
give up too easily or it will never
be done. This new-found
spirit in me will get me far in life.
motto a saying taken as a
guiding
principle
intently seriously.

ANSWERZ
Violent video games, like violent films, are an
expression of artistic focus. Most violent video
games are not necessarily designed to make
violence enjoyable, but more to make the entire
experience of the video game more realistic in feel.
One of the current trends in the media, is to
encourage the ban of video games with violent
content, and, personally I think this is a farce. Like
films, literature, comic books and television, video
games are merely the newest medium for artistic
expression in the late 20th and early 21st Century.
They are unique in the fact they can mimic and in
some ways surpass all other artistic mediums
before them, due to their digitally- interactive input
method. It's this uniqueness and unwillingness to
be pigeon-holed, that has piqqued the public's
interest in them, to a point of wanting it's riddance.
If violent video games should be banned, the only
logical reason they should be is to protect them
from younger children. But like films, there are clear
age restrictions on games with a high amount of
graphic content. The video games "Manhunt" and
"Grand Theft Auto", have been particularly stressed
in the press as boasting content that has led to the
deteriation of young people in todays culture. But
both these video games carry an 18 certificate age
restriction, and if parents are letting their children
play them at a young age, I'm frankly not surprised
that adverse behavioral changes would occur in
children below the age of 14, who have been
allowed to play these games without efficient
guidance. Also, blame perhaps equally lies with the
video game retailers who have sold them to
underage children. Violent video games, like films
and similar expressive mediums should not be
banned, if enough care is taken to stop them being
experienced by children of an unsuitable age.
One point you have to keep in mind is at what point
a game is considered violent. Some people consider
games like Runescape where you "attack" another
person to be violent

ANSWERZ
Q6. a. He gave then a rough edge of his tongu (he treat them badly) b. The evidence is seen 2ru d huge numb of his workers 72. C. He planned to buy a new helicopter that will be the ultimate solution to d isue of trafic congestion. D. He should have pay preparatory visit to ireti. E. i. He is a man who abndn his community 4 more than 30yrs. ii. He has consistantly turned deaf ears to d calls of d youth. Fi. Noun phrase ii. It tells us more about what happed in ireti. Gi. Irony. ii. It means that he treated them badly. . Hi. Emphasized ii. Fundamental iii. Astonished iv. Abandoned v. Exit.

ANSWERZ
(7a) The writer visits the mesuem on his capacity as a student undergoing a research
(b) William Willberfore was famous for preaching against slave trade
(c) the writer standout because he was faced with vivid features of what he was researching for
(d) the other man was frightened becase he had mistaken the researcher for stature comming alive
(e) the man assumed that because the stature and the black man shared resemblance
(f) i. hyperbolic
ii. it means altimate fear have engulfed him
(g)
i. adjectaval clause
ii. it qualifies the noun "bus"
(h)i.societies
ii. outstanding
iii. confusion
iV. copy
v. chased

ANSWERZ
(8)The world's populatiom is increasing at an alarming rate.(ii)A lot of people migrate from the villagers to the urban centres to enjoy the good things of life.(iii)People run away from troubled sports to other areas to preserve their lives.(iv)People lack the financial ability to rent or build decent houses(v)The building materials are too costly (b)i) They have settled for unthinkable places to live such as abandoned houses,shipping containers,cardboard boxes among others.

OBJECTIVE LOADING.................................

PHYSIC PRACTICAL

2012-04-18T04:51:00.000-07:00

ELECTRICITY
Readings=>
Vo=0.40v ; Io=0.60A

PJ(cm)| V(v) | I(A)
40.00 | 0.30 | 0.60
50.00 | 0.28 | 0.65
60.00 | 0.25 | 0.67
70.00 | 0.20 | 0.70
80.00 | 0.18 | 0.75

b.) Advantages of Potentiometer over voltmeter.

1. D potentiometer pass no current @ the time current is being taken
2. D potentiometer is more accurate than the voltmeter
3. D potentiometer does not have the type of error associated with a pointed instrument like d voltmeter.

PRECAUTIONS
- I ensured that the key was opened whenever the circuit was not in use so as to avoid the battery being run down;

- I avoided parallax error while taking readings frm both voltmeter and ammeter.

- I ensured tight connections to avoid fluctuation of d current.

UPTHRUST=>
Using d Spring balance provided, determine d weight of object of mass M=50g. Record ds weight as W1.

ii.) Determine d weight of d object when completly immersed in water cotained in d beaker, record the weight as W2.

iii.) Determine d weight of d object when it is completely immersed in liquid labelled 'L'. Record d weight as W3. Evaluate V=(W1-W3) and v=(W1-W2).

iv.) Repeat d procedure with d object of mass M= 10, 15, 20 and 25. In each cases, evaluate V=(W1-W3) and v=(W1-W2).
Plot d graph of 'V' on d vertical axis against 'v' nn d horizontal axis.

v.) Determine d SLOPE S1 of d graph.
State two (2) precautions to ensure accurate results.

b.) 1. A piece of Brass of mass 200g is hang on a sring balance from right support and completely immersed io Kerosene of Density 8.0*10^2kgm-

3. Determine d reading on d Spring balance.
(g=10ms-2 density of Brass =8.0*10^3kgm-3)

ii.) State Archimede's Principle and d law of floatation.

READINGS
W1(g)|W2(g)|W3(g)
50.0 |44.00 |46.00
100.0|90.00 |90.00
150.0|134.0|140.00
200.0|176.0|180.00
250.0|222.0|220.00
--------------------------
U =W1-W2(g) |
V=w1-w3(g)
6.00 | 4.00
10.00 |10.00
16.00 |10.00
24.00 |20.00
30.00 |30.00,,
Under electricity:-
what is ohm's law?Ohm's law
states that the current flowing
through a metallic conductor (e.g
wire) is directly proportional to
the potential difference across its
ends,provided that the
temperature and other physical
conditions of the conductor are
kept constant.

Under upthrust:-
what is archimedes principle?
archimedes principle states that
when a body is totally or partially
immersed in a fluid (liquid or gas)
,it experiences an upthrust which
is equal to the weight of fluid
displaced.

What is principle of floatation? It
states that an object wil float in a
fluid (liquid or gas)when the
upthrust exerted upon it by the
fluid in which it floats equals the
weight of the object.

Precautions:-
1. I avoid the masses being
touched the bottom of the flask
while immersed
2. I avoid parallax error while
taking my readings
3. I avoid oscillations while taking
readings

BIOLOGY PRACTICAL 100% SURE

2012-04-11T13:55:00.003-07:00

BIOLOGY
SPECIMEN A – Garden egg fruit
SPECIMEN B – Tridax fruit – Tradax procumbens
SPECIMEN C – Grain weevil
SPECIMEN D – Tick
SPECIMEN E - Rat – Rattus rattus
SPECIMEN J - tilapia fish
SPECIMEN K - toad
SPECIMEN L - lizard

Name one of dispersal each for specimen A & B
Answer : SPECIMEN B – Man, Animal
SPECIMEN B – Wind.
Give one reason each for your answer above
Ans: Reason for the dispersal of specimen A includes:
i.It is edible
ii.Whole fruit is eaten
Reason for the dispersal of specimen B includes:
i.It is light or it is small.
ii.It has pappus to aid buoyancy in the air.
State observed feature by which specimen C (Grainweevil) obtain their food or adaptive features of specimen C to it mode of life.
Ans: i.Rostrum for piercing into the grain
iii.chewing mouthparts for for chewing or mandible for chewing.
iv.Smallbody size that will enable it to penetrate the grain.
v.Wings for flying.
Name the crops that specimen C (Grain weevil) can infests.
Ans:Rice, Bean, Millet, Guinea corn, Weat, Maize.
State the type of fruit of specimen A
Ans:Specimen A belong to Berry
Reason for classifying spec A (garden egg) as berry.
1.it has succulent mesocarp
2.it has many seed
3.has itn epicarp

*state the phylum & class of C&D
Ans: C & D belong to phylum:arthropoda
Class of C:insecta
Class of D; arachnida (thicks)
Reason 4 ans phylum:arthropoda
i.seginmented body
ii.chitinous exo-skeleton
iii.jointed appendages
Reason 4 class 4 C
i.3 body divisions(head,thorax,abdomen)
ii.3 pairs of jointed legs
iii.2pairs of wings
Reason 4 class 4 D
i.2 body division (prosoma&opisthosoma
ii.4pairs of jointed legs
iii.absent of wing
*state 4 ways of preventing the activities of C*
1.proper draying of gains
2.use of pesticide&insecticide
3.store in dry place
4.use of irradiation
5.Avoid mixing old stock of grains with new grains.
Explain how specimen C (weevil) infest the crop or state the economic important of specimen C.
i.perforated the grains
ii.Destroy the grain into powdry form
iii.Reduce the quatity of crop
List one animal that can be attacked by specimen D
Ans:Tick attacks goat, sheep, Dog and Man.
Explain how specimen D affect the animal they infest.

i.Sucks blood from the animal
ii.Causes loss of blood or anaemia
iii.Transmits disease
iv.Cause itching
Name two ways by which farmer can control D
1.hand pick
2.treating the animal with insecticide
3.burning the grasses where d animal graze
*state d respiratory organ of C,D,E
C=tracheal system
D=lung book
E=lung
*to which class of animal does E belong* = Mammal
*state d excretory structure possessed by E= Kidney/skin/lung
Group2
Spe J Tillapia fish
Spe K Toad (Bufo regularis)
Spe L Lizard (Agama agama)
*state the phylum and class of E,J.K&L
Spephylumclass
E= ratchordatemammalian
J= tillapiafish ,,pisces
K= toad ,,,amphibian
L= Lizard ,,,reptilian
Respiratory organ of
J= GIL
K=MOUTH/SKIN/LUNG
L= LUNG
•state 4 common features of the respiratory organ of J,K,L
1.THIN SURFACE
2.LAGRE SURFACE AREA
3.MOIST SURFACE
4.SURFACE VASCULARISED
Mention 3stuctural similarities btw E&K
1.both have a pair of limbs
2.both have a pair of eye
3.both have a pair of hearing orgam
4.both have anterior opening (mouth) and posterior opening(anus)
mention 4 stuctural difrences btw E&K
E=pinna presentK= pinna absent
E=hiar presentK=hair absent
E=tail presntK=tail absent
E= toes not webbed K= webbed toes
E= whiskers present K= whiskers absent
E= poison glad absent K=poison glad present
state the excretory structures posses by J,K,L
kidney
state how external feature of J to it environment
1.Dark grey dorsal is used for camouflage against predator
2.mouth 4or in in flow of water for respiration
3.overlapping ceales 4 protection
4.operculum 4 protecting the gils
5.caudal fin for steering
6.stream line body for rapid movement
Name of classes of food that j provide in human nutrition
1.vitamin
2.fat&oil
3.proteins
State the habitat of J,K,L
J= pond and lake
K= wet damp places and under leaves
L= around home/ building
State 5 observable features of K
1.webbed digit, 2.stream lined body 3. bugging eye above the head 4. nostril above the head 5. body odour 6. long tongue
State how the feature in above adapting K to it habitat
1.webbed digit for swimming
2.stream line body for easy movement in water
3.bugging eye to see above water when body submerged
4.nostril enables animal to get atmosphere while summing
5.long tongue for easy catching prey
State 2 adaptive of L and its environment.
1.digit limbs movement
2.claws in the limbs for digging soil
3.tail 4 protection and fighting
State 3 structural differences btw J and k
J= limbs are absent K=limbs are present
J= scales are presentK= scales are absent
J= operculum is presentK= operculum is absent
State 3 structural differences btw K & L
K= scales absentL= scales present
K= gular ford absentL= gular ford present
K= tail absentL= tail present
K= claw digit absentL= claw digit present
K= webbed digit presentL= webbed digit absent
K= neck absentL= neck present

BIOLOGY QUESTION NOW!

2012-04-11T02:49:00.004-07:00

BIOLOGY QUESTION FOR WAEC 2012

SECTION A

1a> Explain briefly 4 factors that affect diffusion of substances.
1b> Explain d following terms: i>active transport, ii>transpiration.
1c> State 4 ways by which plants can reduce high rate of transpiration.
1d> State d features of red blood cells and how the features adapt to d cells 2 perform its functi[Receiving Text]y how sugar level of mammalian blood can be regulated.

2a. describle briefly the role of the stomach in digestion
2b i. Name three parts of plants in which food can be stored.
2b ii. Give one exampl in each case.
2b iii. Explain beriefly how the level of sugar in the mammalian blood can be regulated

SECTION B

7a).disease is a conditn dt occurs wen a body is not in normal state.it result frm d actn of sum organism either within or outside d host.pathogen r d organism ..7aii) symptoms:change in host temp,body pain,headache,fever,vomitin,tirednes nd fatigue. 7b) PHYSICAL BARIER i havin regular bath wit clean water ii kilin of pathogen carryin insents CHEMICAL BARIER i fumigatn of d environment ii use of anticeptic soaps nd cream on d body 7c) ANTIBODY:it protects d body against disease,it is produced by d body,it fights d antigen,ip prevents d introductn of oda disease in2 d body,dey neutralize poison produce by antigen,dey disintegrate antigen..ANTIGEN:it caures disease to d body,it enters in2 d body frm d environment,it destroys d antibody,it allows oda disease in2 d body,dey produce poison in2 d organism,dey form a coat for protectn. 7d) malaria-anopheles mosquitor,cholera-bacteria,AIDS-human imuno virus

OBJECTIVE 1-60

1-10B,C,D,B,B,B,C,C,A,D.

11-20,A,A,D,C,B,A,A,A,B,C.

21-30,D,A,A,D,B,A,C,C,B,A

31-40,A,C,D,B,C,A,C,CC,D.

41-50B,C,D,D,B,A,A,A,B,C.

51-60 C,A,B,B,C,B,A,D,A,C

ACCOUNT QUESTION

2012-04-11T00:04:00.000-07:00

CLICK HERE TO MAKE MONEY AND PAY FOR YOUR WAEC RUNZ!

WAEC FINANCIAL ACCOUNT OBJECTIVE

Account obj. 1_10 ABCDBBDACD
11_20=ADBCDADCC
21_
30=DBACDAACAB
31_
40=DADBDACBAC
41_
50=ADBBCBADCD

WE ARE PROCESSING TO TYPE OUT THE THEORY............................50% LOADING....

theory ANSWERS

No4ai.
Reserve ar allocatns of fund usualy to build up the financial strength of company by retain fund to work d busines of being distribute dividend.

ii.Capital & Revenue reserve.

4b.i.credit reserve
ii.debit profit
iii.debit loss.

4c.i.bad dept
ii.provisn for bad
iii.balance sheet
iv.profit and loss.

2a (1) Without violation of the agreement between the partners,
(a) By the termination of the definite term or particular undertaking specified in the agreement;
(b) By the express will of any partner when no definite term or particular undertaking is specified;
(c) By the express will of all the partners who have not assigned their interests or suffered them to be charged for their separate debts, either before or after the termination of any specified term or particular undertaking;
(d) By the expulsion of any partner from the business bona fide in accordance with such a power conferred by the agreement between the partners

(1) Without violation of the
agreement between the
partners,
(a) By the termination of the
definite term or particular
undertaking specified in the
agreement;
(b) By the express will of any
partner when no definite term
or particular undertaking is
specified;
(c) By the express will of all the
partners who have not assigned
their interests or suffered them
to be charged for their separate
debts, either before or after the
termination of any specified
term or particular undertaking;
(d) By the expulsion of any
partner from the business bona
fide in accordance with such a
power conferred by the
agreement between the partners

AGRIC PRACTICAL

2012-04-09T09:57:00.002-07:00

2012 WAEC AGRICULTURAL

SCIENCE SPECIMENS

A= Organic manure

B= Inorganic manure

C= Sandy soil

D= Clay soil

E= Crucible

F= Source of heat/Bursen

Burner

G= Weighing Balance

H= Cultlass

I= Hoe

J= Shears

K= Rake

L= Watering can

M= Shovel

N= Groundnut seeds

O= Maize seeds

P= Guinea corn seeds

Q= Aphids

R= Lantern/Huricane lamp

S= Chicken egg

T= Tick

U= A chart showing a pig/Hand

drawing of a pig.

QUESTION AND ANSWER

(specimen A-organic
manure) USES
1.poultry

dr0pping 2.cow dung 3.farm

yard manure 4.compost

manure 5.ash

(SP B

INORGANIC MANURE) are

synthesised artificially USES:

1.N.P.K Fertilizer

2.Ammonium sulphate

3.sodium

4.urea

5.calcium

ammonium nitrate

6.super

phoshate

7.lime

ADVANTAGES

ND BENEFIT OF A

1.supplies

nutrient to crops

increases soil fertility

3.binds soil particles 2gedar

4. Amproves soil structure

5.increases the yield of

crops 6.acts as a buffer in

the soil.

METHODS OF

APPLYING A.

Padcasting,spraying,side

dressing,band

methods...

EXPERIMENT TO

FIND THE PERCENTAGE OF

HUMUS CONTENT IN THE SOIL.

Mass of crucible=xg mass of

cruable +drysoil=yg mass of

drysoil=y-x=A(g),mass of

drysoil alterlating=z-x=B

(g),mass of humus=A-B % of

humus=A-B/A

X100....

EXPERIMENT TO FIND

THE % OF SOIL WATER.

METHOD=lnitial mass of the

soil is recorded and heated

in a crucible the mass is

recorded after heating nd

the mar7 of water is

recorded. Mass of crucible=X

(g),mass of cruable + fresh

soil=Y-X=A(g),mass of

crucible+heated soil=Z

(g),mass of dried soil=Z-X=B

(g),mass of water=(A-B) (g)

(SPECIMEN H-CUTLASS) LIST

eight uses,

(SEpCIMEN I-

HOE)list 5 uses

(SPECIMEN

J)list 5 uses

(SPECMEN K)list

5 uses

(SPECIMEN L)list 3

uses

(SPECIMEN M)list 5 uses

(MAINTANANCE OF H,I,J,K,L&

1. Clean&dry after use

2.straighten bent blade

3.rub

the metal with oil

4.avoid

rough handling

5.keep in cool

dry place

(SPECIMEN N-

GROUNDNUT)botanical

name=ARACHIS

HYPOGEA,varieties=1.castle

carry 2.kano local 3.kano 50

4.samuru 38,soil

requirement=1.sandy,loamy

nd highly acidic to

neutra..

PROPAGATION=seed,PEST=aphid,rodent,weevil,

CONTROL

1.spray with insecticide

2.settin of traps 3.early

harvest ,

DISEASES

=>1.rosette

disease(virus)

=>2.tikka

disease

=>3. Aspergillosis

4.seed rot (fungus)

(SPECIMEN O)botanical

name=ZEA ..varieties=deut

maize,sweet,corn

GOVERNMENT QUESTION!

2012-04-04T17:01:00.001-07:00

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GOVERNMENT QUESTIONS TO EXPECT
2a]As government has got larger in all areas of society, there are some who claim that not enough is being done to protect those in society who might feel that their rights are being infringed and trespassed on by the government.

No3]
i. law making
ii. Power of approval
iii. financial control

8b]Economic Depresion
ii. The alantic charter
iii. the super power
iv. british labour party

1. Characteristic of Democracy government

At its most basic, a democracy is a system of

government where leaders are chosen by

election, but there are other criteria.

Typically, democracies have broad adult

suffrage for all citizens. In other words, minority

groups (at least those that are citizens) and

women have the right to vote.

A democracy

must also have competitive, free, and fair

elections. This means, first, that people may run

for office without hindrance if they meet the

legal qualifications, regardless of their political

views, and the outcome is not preordained by

the government (a competitive, free election).

Secondly, the election is conducted so that all

votes count relatively equally, fraud is

minimized, and all major parties have access to

media, without the government using private-

or state-owned media to reward its allies and

punish its enemies (a fair election).

a democracy

must have protections for individual freedoms,

particularly to speak their minds, even against

government policy and leaders, and the right to

assemble in protest.

Corect Obj 1-10 bacccabbcb 11-20 abcadbbcac 21-30 abdbdadaba 31-40 aabcabccbd 41-50 bcdbbbdadb

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CHEMISTRY QUESTION AND ANSWER

2012-04-03T05:09:00.001-07:00

CHEMISTRY WAEC PRACTICAL

Question1) burette of 50cm capacity pipette, either 20cm or 25 (using d usual apparatus for titratione) Reagents for qualitative work

(i) red and blue litmus paper;
(ii) aqueous ammonia
(iii) dilute hydrochloric acid
(iv)dilute sodium hydroxide solution
(v)barium chloride solution
(vi)dilute trioxonitrate
(V) acid
(vii)silver trioxonitrate
(V) solution [AgNO3]
(viii)lime water methyl orange indicator

Question 2) A. 150cm of tetraoxosulphate
(VI) solution in a corked flask or bottle,labelled 'A' containing 2.8cm of concentrated H2SO4 (about 98% w/w)per dm of solution.

B. 150cm of NaOH solution, in a corked flask or bottle labelled 'B' containing 3.9g of NaOH per dm of solution. C. 10cm of (NH4)2SO4 solution in a bottle labelled 'C' containing 66g of (NH4)2SO4 per dm of solution.

D. 10cm of FeCl3 solution in a bottle labelled D containing 40g of FeCl3 per dm of solution.

ANSWER
> QUANTITATIVE ANALYSIS <
TEST
Solution C + aqueous NaOH + Heat
-----------------------
Portion of Solution C + BaCl2 + dil. HCl.
-------------
Portion of Solution D + NaOH in drops. Then in excess.
----------
Portion of Solutio D + NH3(aq) in drop then iq excess.
--------
Portion of Solution D + HNO3 + AgNO3 solution.
---------
Mixture frm above + HNO3 in excess.
------

OBSERVATIONS
Evolution of colourless gas with characteristics choking smell which turns moist red litmus paper blue and form white foam with conc. HCl acid vapour.
-----------------
white ppt insoluble in dilute HCl
--------
Reddish brown ppt insoluble
----------
Reddish brown ppt insoluble
--------
White ppt insoluble
--------
White ppt dissolved to give a colourless solution.
-----------------

INFERENCE
NH3 gas from NH4+ is present.
-------
SO42-, SO32-, CO32- are present
--------
Fe3+ is present
-------
Fe3+ is present
--------
Cl- ion is present
------
Cl- ion is confirmed.
(N.B u write a test scroll to its observation and then its inference. 'cos it is to be written in tabular form i.e make a 3 columns: then write
TEST| OBSERVATION|INFERENCE.) ,
====================

> VOLUMENTRIC ANALYSIS <
A solution acid H2X 2.45g in 500cm3 of solution. Solution B contain 3.90g of NaOH in 1dm3 of solution. Put A into the burrette and titrate with 20cm3 or 25cm3 portion of B using methyl orange as indicator.
Record the value of your pipette. Tabulate your readings and calculate the average titre value of acid used. From ur results and information provided. Cal. the:
i) Concentration of solution B in mol/dm3
ii) Concentration of A in mol/dm3
iii) Molar Mass of acid H2X and hence determine the relative mass of X.
H2X + 2NaOH===> Na2X + 2H2O.

Burrete reading (cm3)
Final
Initial
Volume

Rough | 1st | 2nd | 3rd
28.50 | 26.40 | 25.60 | 26.50
1.00 | 2.00 | 1.00 | 2.00
27.50 |24.40 |24.60 | 24.50

(N.B folow d order i.e final reading, initial reading and volume of A used).

Average Volume of Acid used = (24.40+24.60+24.50) /3
= (73.50/3) =24.50cm3.

A=H2X B=NaOH
2.45g ==> 500cm3
xg ==>1000cm3
:. x= (2.45 *100)/500
=4.90g/dm3.

i.) Cb = mas concentration/molar concentration
=(3.90/40)mol/dm3
Cb=0.0975mol/dm3.

ii.) CaVa/CbVb =na/nb ; Va =24.50cm3, Cb=0.0975mol/dm3, Vb=25cm3, na=1, nb=2.
(Ca*24.50)/(0.0975*25) Ca=(0.0975*25)/(24.50*2). Ca =2.4375/49.00
Ca=0.0497mol/dm3.

iii.) Ca = mass concentration / molar concentration
0.0497=4.90/molar mass
molar mass =4.90/0.0497
molar mass=98.6g/mol
H2X =98.6
(1*2) + X =98.6
X= 98.6 -2
= 96.6

NOTE:-
1. Even if you don't Undestand the Question and Answer, Don't worry yourself, Just chill till tommorrow until you see the Question, Its gonna be easy with the above Post.

LIST OF PRACTICAL SPECIMEN

2012-03-28T23:03:00.001-07:00

2012 PRACTICAL BIOLOGY SPECIMENS
Specimen A - Garden egg fruit
Specimen B - Tridax fruit
Specimen C - Grain weevil
Specimen D - Tick
Specimen E - Rat (wet preserved)
Specimen J - Tilapia fish (wet preserved)
Specimen K - Toad (wet preserved)
Specimen L - Lizard (wet preserved)

2012 PRACTICAL PHYSICS
Question 1
Retort stand with clamp;
spring balance;
two beakers, 500cm each
(A) containing water and labelled water;
(B) containing kerosene and labelled liquid L;
set of masses 50g, 100g, 150g, 200g and 250g;
thread about 1 m

Question 2
Retort stand with clamp;
flat bottom plastic petri-dish;
syringe about(0-10cm). Remove the needle. Pull up the plunger. Use flame from a match stick to melt and seal the tip of the syringe to ensure that it is air tight;
use appropriate (plastic to plastic) adhesive to fix the bottom of the petri-dish symmetrically to the top of the plunger;
set of masses 500g, 1000g, 1500g, 2000g and 2500g.
NOTE : masses may be improvised with fine dry sand.
Question 3
Potentiometer (0 - 100cm);
ammeter (0 - 3A);
voltmeter (0 - 5V);
jockey;
2 ohms standard resistor labelled R;
two dry cells each 1.5V or 2V freshly charged accumulator;
plug key;
eight connecting wires.

2012 PRACTICAL CHEMISTRY
(1)
burette of 50cm capacity
pipette, either 20cm or 25 (using d usual apparatus for titratione)
Reagents for qualitative work
(i)red and blue litmus paper;
(ii)aqueous ammonia
(iii)dilute hydrochloric acid
(iv)dilute sodium hydroxide solution
(v)barium chloride solution
(vi)dilute trioxonitrate (V) acid
(vii)silver trioxonitrate (V) solution [AgNO3]
(viii)lime water
methyl orange indicator
(2)
A. 150cm of tetraoxosulp£ (VI) solution in a corked flask or bottle,labelled 'A' containing 2.8cm of concentrated H2SO4 (about 98% w/w)per dm of solution.
B. 150cm of NaOH solution, in a corked flask or bottle labelled 'B' containing 3.9g of NaOH per dm of solution.
C. 10cm of (NH4)2SO4 solution in a bottle labelled 'C' containing 66g of (NH4)2SO4 per dm of solution.
D. 10cm of FeCl3 solution in a bottle labelled D containing 40g of FeCl3 per dm of solution.

2012 PRACTICAL AGRIC SPECIMEN
Specimen A - Organic manure
B - Inorganic manure
C - Sandy soil
D - Clay soil
E - Crucible
F - Source of heat/ Burnsen burner
G - Weighing balance
H - Cutlass
I - Hoe
J - Shears
K - Rake
L - Watering can
M - Shovel
N - Groundnut
O - Maize seeds
P - Guinea corn seeds
Q - Aphids
R - Lantern/Hurricane lamp
S - Chicken egg
T - Tick
U - A chart showing a pig/Hand drawn diagram of a pig.

NOTE THIS!
They are the REAL specimens for this year practicals. For example in biology and agric practical, you are required to know the characteristics/behaviour of each of the specimen.

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HISTORY

2012-03-28T15:00:00.001-07:00

HISTORY

WAEC was established in 1952. Click here to learn more about our history.

WAEC's responsibility is to determine examinations required in the public interest in West African Countries. Click here for details on our profile.

The Council consists of sixty members from all the five member countries. Click here to meet the members.

The West African Examinations Council was established in 1952 following the acceptance of the Jeffery Report by the then colonial Government(s) in the Gold Coast (now Ghana), Nigeria, Sierra-Leone and the Gambia; who passed appropriate ordinances in their Legislative Assemblies in 1951. The ordinances charged the Council with the responsibility of determining the examinations required in the public interest in West Africa, and empowered it to conduct such examinations and award appropriate certificates. The Jeffery Report had strongly recommended the setting up of a West African Examinations Council in the then four British colonies of Nigeria, Gold Coast, Sierra-Leone and The Gambia. Liberia later joined the Council in 1974.

The ordinances have now been replaced with the Convention which confers legal personality on the Council as an international organisation.
CHAIRMEN OF COUNCIL
1952 - 54 Mr. A. N. Galsworthy Briton
1954 - 60 Dr. J. T. Saunders Briton
1960 - 64 Sir John F. Lockwood Briton
1964 - 69 Davidson S. H. W. Nicol Sierra Leonean
1969 - 72 Prof. T. Adeoye Lambo Nigerian
1972 - 77 Dr. S. T. Matturi Sierra Leonean
1977 - 85 Prof. E. A. Boateng Ghanaian
1985 - 88 Prof. M. 0. Oyawoye Nigerian
1988 - 91 Dr. Lenrie W. Peters Gambian
1991 - 94 Dr. E. Evans-Anfom Ghanaian
1994 - 97 Prof. J. A. Kamara Sierra Leonean
1997 - 2000 Dr. Yahaya Hamza Nigerian
2000 - 2003 Dr. Frederick S. Gbegbe Liberian.
2003 - 2006 Mr. Ousman Alieu Ndow Gambian
2006 - 2009 Prof. Jerome S. Djangmah Ghanaian
2009 - date Prof. Jonas A. S. Redwood-Sawyerr Sierra Leonean

PRESS RELEASE

2012-03-28T14:02:00.000-07:00

Press Release
An Address by the Head of Nigeria National Office of the West African Examination Council (WAEC) Dr Iyi Uwadiae

WAEC's vision is to be a world-class examining body, adding value to the educational goals of its numerous stakeholders. It's mission is that of West Africa's foremost examining body, developing and maintaining internationally accepted procedures in examinations, providing qualitative and reliable educational assessment, encouraging academic and moral excellence among the youth and promoting sustainable human resource development, mutual understanding and international cooperation.

Dr Iyi Uwadiae
Head of National Office, Nigeria

In its fifty five years of existence, the Council has achieved its mission in very large measure. For instance it has over the years developed a team of well-trained and highly motivated staff and has administered examinations that are both valid and relevant to the educational aspirations of member countries. Its certificates enjoy international recognition. WAEC has also been promoting the ideals of hardwork and honesty in the youth through its awards for outstanding performance in its examinations.

The Council conducts several international and national examinations in all member countries except Nigeria where it has shed all but one of its examinations, The West African Senior School Certificate Examination (WASSCE) for school candidates in May/June and Private candidates in November/December.

Short Messaging Service (SMS)

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1. Send SMS in the format below:
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To short-code 32327 (MTN, Celtel & Glo subscribers)
For example:
WAEC*4250101001*123456789012*2007
Note:
Ensure you adhere strictly to the format above . There should be no space in the message.
2. Wait for your result to be delivered to your phone via SMS. (SMS cost N30 only)

WAEC AND JAMB PRACTICE QUESTION

2012-03-26T00:35:00.001-07:00

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WAEC NEWS

2012-03-25T14:32:00.003-07:00

ADDRESS BY DR.IYI UWADIAE, mnim, HEAD OF THE NIGERIA NATIONAL OFFICE OF THE WEST AFRICAN EXAMINATIONS COUNCIL AT A MEDIA BRIEFING TO ANNOUNCE THE RELEASE OF THE RESULTS OF THE NOVEMBER/DECEMBER 2010 WEST AFRICAN SENIOR SCHOOL CERTIFICATE EXAMINATION (WASSCE),ON THURSDAY, DECEMBER 23,2010 AT WAEC NATIONAL OFFICE,YABA, LAGOS

Gentlemen of the media, it is with great pleasure that I welcome you to this media briefing –the third of such briefing this year.

It is indeed a privilege and honour to have you here today. On behalf of the management and staff of the Nigeria National Office of the West African Examination Council, I thank you, most sincerely, for your usual positive response to our invitations and for the cordial relationship and mutual understanding which existed between us throughout the year. It is my sincere wish that this cordial relationship would continue in the coming year.

Gentlemen of the media, let me also use the opportunity of this briefing to, once again, express our profound gratitude to our Supervisors, Invigilators and Custodians for their dedication to duty during the conduct of the November/December 2010 West African Senior School Certificate (WASSCE). Similarly, our sincere appreciation goes to our Chief Examiners, Team Leaders and Assistant Examiners for their immeasurable contributions to the successful conduct of the November 2010 marking exercise in spite of the short notice. The Management of the Council is indeed very grateful to these noble men and women for their sense of patriotism and service to the nation and for their sacrifices in the interest of the education of the Nigerian child.

Gentlemen of the media, at the 50th meeting of the Nigerian Examinations Committee of the Council held at the Excellence Hotel and Conference Centre, Ogba-Ikeja, Lagos, from November 30 to December 2, 2010; the Committee, which is the highest decision-making organ of the council on the conduct of examinations in Nigeria, as in all its previous meetings made some very salient observations. These observations, which were subsequently released via a communiqué, are worth reiterating here for the benefit of all stakeholders in the education sector.

In the course of considering the various reported cases of malpractice during the conduct of the May/June 2010 WASSCE, the committee, as always, strongly expressed deep concern at the rife incidence of malpractice in examinations in Nigeria and wondered how the nation had got to this sorry pass. The Committee observed that all sectors of national life, not only the education sector, were malpractice ridden as a result of the collapse of the nation’s value system and strongly noted that there was a very urgent need for the re-engineering of the nation’s value system.

The Committee, once again, also decried the dearth of qualified teachers , inadequate and dilapidated classrooms, inadequate teaching aids and other facilities in most of the secondary schools in the country and passionately appealed to all Governments (Federal and State ), and other stakeholders and indeed proprietors of private schools to address the situation urgently. The Committee also appealed for substantial improvement in the funding of the education sector in order to improve the quality of education in the country and subsequently of performance in public examinations. The Committee also called on the ministries of education to ensure to ensure that only schools with necessary facilities to function as schools are duly approved and registered.

Today, Gentlemen of the media, I am delighted to announce the release of the results of the November/December 2010 West African Senior School Certificate Examination, (WASSCE), Two weeks ahead of schedule.

A total of 324,998 candidates registered for the examination, out of which 310.077 candidates consisting of 168,835 male and 141,242 female candidates sat the examination.

Out of the total number of candidates that registered,309,431 candidates representing 95.2%,have their results fully processed, while 15,567 candidates, representing 4.79% have a few of their subjects still being processed, as various errors ad omissions mostly traceable to them are being sorted out by the Council. These errors were committed during the online registration and the actual conduct of the examination.

The results of 51,876 candidates, representing 16.73% are being withheld, based on various reports of their alleged involvement in examination malpractice.
Statistics show that 250,487 candidates representing 80.78% have two credits and above; 217,161 candidates (70.03), have three credits and above; while 180,480 candidates (58.20), have four credits and above. Furthermore, 141,167 candidates (45.52%), obtained five credits and above, while 99,750 candidates (32.16%) obtained six credits and above.

A total of 133,507 candidates (43.06%) obtained credit and above in English, while 151,569 candidates (48.88%) obtained credit and above in Mathematics.

From the total number of candidates who sat the examination, however, 62,295 candidates, representing (20.04%) obtained credits in English language, Mathematics and at least three other subjects.

A total number of 33 blind candidates sat the examination, and from this figure, 4 candidates, representing (12.12%), obtained credits in five subjects, including English Language. Blind candidates are exempted from taking mathematics and science practicals in WASSCE diets.

All the reports on the cases of involvement in examination malpractice have been compiled for presentation to the Nigeria Examinations Committee of the Council in March 2011. The Committee’s decision on the various cases will be communicated to the affected candidates shortly, through our zonal and branch offices.

Candidates who sat the examination will be able to check the details of their performance with their scratch cards on our result checking website: www.waecdirect .org within the next 24 hours.

Finally, on behalf of the management of the Nigeria National Office of the Council, I also wish to express my deep appreciation to our staff for their commitment to duty and for working tirelessly in order to ensure that the results were released well ahead of schedule.

Distinguished Gentlemen of the media, once again, on behalf of the management of the Nigeria National Office of the Council, I thank you for finding time to attend this briefing.
I wish you all a merry Christmas and prosperous new year in advance.

Thank you and God bless.