tag:blogger.com,1999:blog-33046478803281279902025-05-26T03:04:31.400-07:00Question and AnswerExam preparation. Debasis Mandalhttp://www.blogger.com/profile/12252530618391559851noreply@blogger.comBlogger10125tag:blogger.com,1999:blog-3304647880328127990.post-30275353496282456282016-02-06T19:35:00.001-08:002016-02-06T19:35:21.028-08:00Biology (part-3)<html>
<head>
<title>debasisanswer.blogspot.com</title>
<center><font color="green"><h1>debasisanswer.blogspot.com</h1></font></center>
<meta name="description=" content="Q: Virus consists of
O: (a) nucleic acid
(b) protein
(c) both a and b
(d) none of these
Ans. (c) both a and b
Q: Viruses that infect bacteria, multiply and cause their lysis are
O: (a) lysozymes
(b) lipolytic
(c) lytic
(d) lysogenic
Ans. (c) lytic
Q: Potato leaf roll or leaf curl of papaya are caused by
O: (a) fungi
(b) viruses
(c) bacteria
(d) nematodes
Ans. (b) viruses
Q: Infectious proteins are present in
O: (a) Gemini viruses
(b) prions
(c) viroids
(d) satellite viruses
Ans. (a) Gemini viruses
Q: Helical contractile sheath occurs in
O: (a) bacteria
(b) bacteriophage
(c) retroviruses
(d) fungi
Ans. (b) bacteriophage">
</head>
<body>
<br>
<div><h3>Q: Virus consists of</h3></div>
<p>O: (a) nucleic acid</p>
<p>(b) protein</p>
<p>(c) both a and b</p>
<p>(d) none of these</p>
<p>Ans. (c) both a and b</p>
</br>
<br>
<div><h3>Q: Viruses that infect bacteria, multiply and cause their lysis are</h3></div>
<p>O: (a) lysozymes</p>
<p>(b) lipolytic</p>
<p>(c) lytic</p>
<p>(d) lysogenic</p>
<p>Ans. (c) lytic</p>
</br>
<br>
<div><h3>Q: Potato leaf roll or leaf curl of papaya are caused by</h3></div>
<p>O: (a) fungi</p>
<p>(b) viruses</p>
<p>(c) bacteria</p>
<p>(d) nematodes</p>
<p>Ans. (b) viruses</p>
</br>
<br>
<div><h3>Q: Infectious proteins are present in</h3></div>
<p>O: (a) Gemini viruses</p>
<p>(b) prions</p>
<p>(c) viroids</p>
<p>(d) satellite viruses</p>
<p>Ans. (a) Gemini viruses</p>
</br>
<br>
<div><h3>Q: Helical contractile sheath occurs in</h3></div>
<p>O: (a) bacteria</p>
<p>(b) bacteriophage</p>
<p>(c) retroviruses</p>
<p>(d) fungi</p>
<p>Ans. (b) bacteriophage</p>
</br>
</body>
</html>Debasis Mandalhttp://www.blogger.com/profile/12252530618391559851noreply@blogger.com0tag:blogger.com,1999:blog-3304647880328127990.post-11681383717974726092016-02-06T01:40:00.002-08:002016-02-06T01:40:37.083-08:00Physics (part-4)<html>
<head>
<title>debasisanswer.blogspot.com</title>
<center><font color="green"><h1>debasisanswer.blogspot.com</h1></font></center>
<meta name="description=" content="Q: The phenomenon of Brownian movement may be taken as evidence of
O: (a) kinetic theory of matter
(b) EMT of radiation
(c) corpuscular theory of light
(d) photoelectric phenomenon
Ans. (a) kinetic theory of matter
Q: One liter of ideal gas at 27? is heated at a constant pressure to 297?. Then, the final volume is approximately
O: (a) 1.2 L
(b) 1.2 L
(c) 19 L
(d) 2.4 L
Ans. (b) 1.2 L
Q: Temperature remaining constant, the pressure of gas is decreased by 20%. The percentage change in volume
O: (a) increases by 20%
(b) decreases by 20%
(c) increases by 25%
(d) decreases by 25%
Ans. (c) increases by 25%
Q: At what temperature will be the oxygen molecules have the same root mean square speed as hydrogen molecules at 300 K ?
O: (a) 1600 K
(b) 4800 K
(c) 3200 K
(d) 2400 K
Ans. (b) 4800 K
Q: 10 mol of an ideal monoatomic gas at 10? is mixed with 20 mol of another monoatomic gas at 20?. Then, the temperature of the mixture is
O: (a) 16.6?
(b) 15?
(c) 16?
(d) 15.5?
Ans. (a) 16.6?">
</head>
<body>
<br>
<h3><div>Q: The phenomenon of Brownian movement may be taken as evidence of</div></h3>
<h4><p>O: (a) kinetic theory of matter</p>
<p>(b) EMT of radiation</p>
(c) corpuscular theory of light</p>
<p>(d) photoelectric phenomenon</p>
<p>Ans. (a) kinetic theory of matter</p></h4>
</br>
<br>
<h3><div>Q: One liter of ideal gas at 27? is heated at a constant pressure to 297?. Then, the final volume is approximately </div></h3>
<h4><p>O: (a) 1.2 L</p>
<p>(b) 1.2 L</p>
<p>(c) 19 L</p>
<p>(d) 2.4 L</p>
<p>Ans. (b) 1.2 L</p></h4>
</br>
<br>
<h3><div>Q: Temperature remaining constant, the pressure of gas is decreased by 20%. The percentage change in volume</div></h3>
<h4><p>O: (a) increases by 20%</p>
<p>(b) decreases by 20%</p>
<p>(c) increases by 25%</p>
<p>(d) decreases by 25%</p>
<p>Ans. (c) increases by 25%</p></h4>
</br>
<br>
<h3><div>Q: At what temperature will be the oxygen molecules have the same root mean square speed as hydrogen molecules at 300 K ?</div></h3>
<h4><p>O: (a) 1600 K
<p>(b) 4800 K</p>
<p>(c) 3200 K</p>
<p>(d) 2400 K</p>
<p>Ans. (b) 4800 K</p></h4>
</br>
<br>
<h3><div>Q: 10 mol of an ideal monoatomic gas at 10? is mixed with 20 mol of another monoatomic gas at 20 degree. Then, the temperature of the mixture is</div></h3>
<h4><p>O: (a) 16.6 degree</p>
<p>(b) 15 degree</p>
<p>(c) 16 degree</p>
<p>(d) 15.5 degree</p>
<p>Ans. (a) 16.6 degree</p></h4>
</br>
</body>
</html>Debasis Mandalhttp://www.blogger.com/profile/12252530618391559851noreply@blogger.com0tag:blogger.com,1999:blog-3304647880328127990.post-31344221065748756952016-02-05T05:10:00.001-08:002016-02-05T08:10:25.135-08:00Physics (part-3)<html>
<head>
<title>debasisanswer.blogspot.com</title>
<center><font color="green"><h1>debasisanswer.blogspot.com</h1></font></center>
<meta name="description=" content="debasisanswer.blogspot.com,Q: What would be the carrier and one of the side brands were suppressed in an AM wave modulated to a depth of 75%?
Q: When a body moves with constant speed in a circular path, then
O: (a) work done will be zero.
(b) acceleration will be zero.
(c) no force acts on the body.
(d) its velocity remains constant.
Ans. (a) work done will be zero.
Q: The angle of banking is independent of
O: (a) speed of vehicle.
(b) radius of curvature of road.
(c) height of inclination.
(d) none of the above.
Ans. (d) none of the above.
Q: What determines the nature of the path followed by the particle?
O: (a) speed (b) velocity
(c) acceleration (d) both b and c
Ans. (d) both b and c
Q: A body is tried to one end of the string and whirled in a vertical circle, the physical quantity which remains constant is
O: (a) momentum (b) speed
(c) kinetic energy (d) total energy
Ans. (d) total energy
Q: A particle moves in a circle of radius 5cm with constant speed and time period 0.2π s. The acceleration of the particle is
O: (a) 25 m/s^2 (b) 36 m/s^2
(c) 5 m/s^2 (d) 15 m/ s^2
Ans. (c) 5 m/s^2
Q: A stone tied to one end of rope and rotated in a circular motion. If the string suddenly breaks, then the stone travels
O: (a) in perpendicular direction
(b) in direction of centrifugal force
(c) towards centripetal force
(d) in tangential direction
Ans. (d) in tangential direction
Q: If longitudinal strain for a wire is 0.03 and its Poisson’s ratio is 0.5, then its lateral strain is
O: (a) 0.003
(b) 0.0075
(c) 0.015
(d) 0.4
Ans. (c) 0.015
Q: When a wire is subjected to a force along its length, its length increases by 0.4% and its radius decreases by 0.2%. Then the Poisson’s ratio of the material of the wire is
O: (a) 0.8
(b) 0.5
(c) 0.2
(d) 0.3
Ans. (b) 0.5
Q: When a rod is heated but prevented from expanding, the stress developed is independent of
O: (a) length of rod
(b) rise in temperature
(c) material of the rod
(d) none of these
Ans. (a) length of rod">
</head>
<body>
<br>
<div><h3>Q: What would be the carrier and one of the side brands were suppressed in an AM wave modulated to a depth of 75%?</div></h3>
<h4><p>O: (a) 89.1%</p>
<p>(b) 9.1%</p>
<p> (c) 7.81%</p>
<p>(d) 100%</p>
<p>Ans. (a) 89.1%</p></h4>
</br>
<br>
<div><h3>Q: When a body moves with constant speed in a circular path, then</div></h3>
<h4><p>O: (a) work done will be zero.</p>
<p>(b) acceleration will be zero.</p>
<p>(c) no force acts on the body.</p>
<p>(d) its velocity remains constant.</p>
<p>Ans. (a) work done will be zero.</p></h4>
</br>
<br>
<div><h3>Q: The angle of banking is independent of</div></h3>
</div><h4>O: (a) speed of vehicle.</p>
<p>(b) radius of curvature of road.</p>
<p>(c) height of inclination.</p>
<p>(d) none of the above.</p>
<p>Ans. (d) none of the above.</p></h4>
</br>
<br>
<div><h3>Q: What determines the nature of the path followed by the particle?</div></h3>
</div><h4>O: (a) speed</p>
<p>(b) velocity</p>
<p>(c) acceleration</p>
<p>(d) both b and c</p>
<p>Ans. (d) both b and c</p></h4>
</br>
<br>
<div><h3>Q: A body is tried to one end of the string and whirled in a vertical circle, the physical quantity which remains constant is</div></h3>
</div><h4>O: (a) momentum</p>
<p>(b) speed</p>
<p>(c) kinetic energy </p>
<p>(d) total energy</p>
<p>Ans. (d) total energy</p></h4>
</br>
<br>
<div><h3>Q: A particle moves in a circle of radius 5cm with constant speed and time period 0.2π s. The acceleration of the particle is</div></h3>
</div><h4>O: (a) 25 m/s^2</p>
<p>(b) 36 m/s^2</p>
<p>(c) 5 m/s^2</p>
<p>(d) 15 m/ s^2 </p>
<p>Ans. (c) 5 m/s^2</p></h4>
</br>
<br>
<div><h3>Q: A stone tied to one end of rope and rotated in a circular motion. If the string suddenly breaks, then the stone travels</div></h3>
<h4><p>O: (a) in perpendicular direction</p>
<p>(b) in direction of centrifugal force</p>
<p>(c) towards centripetal force</p>
<p>(d) in tangential direction</p>
<p>Ans. (d) in tangential direction</p></h4></p></h4>
</br>
<br>
<div><h3>Q: If longitudinal strain for a wire is 0.03 and its Poisson’s ratio is 0.5, then its lateral strain is</h3></div>
<h4><p>O: (a) 0.003</p>
<p>(b) 0.0075</p>
<p>(c) 0.015</p>
<p>(d) 0.4</p>
<p>Ans. (c) 0.015</p></h4>
</br>
<br>
<div><h3>Q: When a wire is subjected to a force along its length, its length increases by 0.4% and its radius decreases by 0.2%. Then the Poisson’s ratio of the material of the wire is</h3></div>
<h4><p>O: (a) 0.8</p>
<p>(b) 0.5</p>
<p>(c) 0.2</p>
<p>(d) 0.3</p>
<p>Ans. (b) 0.5</p></h4>
</br>
<br>
<div><h3>Q: When a rod is heated but prevented from expanding, the stress developed is independent of</h3></div>
<h4><p>O: (a) length of rod</p>
<p>(b) rise in temperature</p>
<p>(c) material of the rod</p>
<p>(d) none of these</p>
<p>Ans. (a) length of rod</p></h4>
</br>
</body>
</html>Debasis Mandalhttp://www.blogger.com/profile/12252530618391559851noreply@blogger.com0tag:blogger.com,1999:blog-3304647880328127990.post-12891342666093720062016-01-24T09:41:00.001-08:002016-01-24T09:41:21.785-08:00Computer<div dir="ltr" style="text-align: left;" trbidi="on">
1: Q. What is full from of RAM?<br />
A. Random Access Memory<br />
2: Q. What is full form of DVD?<br />
A. Digital Video Disc.<br />
3: Q. What is full name of LAN?<br />
A. Local Area Network.<br />
4: Q. What is full form of MAN?<br />
A. Metropoliton Area Network.<br />
5: Q. What is full form of WAN?<br />
A. Wide Area Network.<br />
6: Q. What is the full from of HDD?<br />
A. Hard Disk Drive.<br />
7: Q. What is the full name of ID?<br />
A. Instruction Decoder.<br />
8: Q. What is full name of GSM?<br />
A. Global System for Mobile Communication?<br />
9: Q. What is full name of CDMA?<br />
A. Code Division Multiple Access.<br />
10: Q. What is full form of SIM?<br />
A. Subscriber Identity Module.</div>
Debasis Mandalhttp://www.blogger.com/profile/12252530618391559851noreply@blogger.com0tag:blogger.com,1999:blog-3304647880328127990.post-10961115613302050022016-01-13T19:17:00.005-08:002016-01-13T19:17:53.009-08:00Physics (part-2)<div dir="ltr" style="text-align: left;" trbidi="on">
<div class="MsoNormal">
Q: How much should the pressure be increased in order to
decries that volume of gas by 5% at a constant temperature?</div>
<div class="MsoNormal">
O: (a) 3.26% (b)
5.26%</div>
<div class="MsoNormal">
(c) 6.26% (d)
4.26%</div>
<div class="MsoNormal" style="line-height: 150%;">
Ans. (b) 5.26%</div>
<div class="MsoNormal">
Q: In Melde’s experiment, a string vibrates in 3 loops when
8g were placed in the pan. What mass must be placed in the pan to make the
string vibrate in 5 loops?</div>
<div class="MsoNormal">
O: (a) 2.88g (b)
3.88g</div>
<div class="MsoNormal">
(c) 4.88g (c)
5.88g</div>
<div class="MsoNormal">
Ans. (a) 2.88g</div>
<div class="MsoNormal">
Q: Figure shows the distance-time graph of the motion of a
car. It from the graph that the car is </div>
<div class="MsoNormal">
O: (a) at rest (b)
in uniform motion</div>
<div class="MsoNormal">
(c) In non-uniform motion (d)
uniformly accelerated</div>
<div class="MsoNormal">
Ans. (d) uniformly accelerated</div>
<div class="MsoNormal">
Q: The excess of pressure inside the first soap bubble is
three times that of inside the second bubble.
The ratio of volume of the first to that of the second bubble is</div>
<div class="MsoNormal">
O: (a) 1:3 (b)
1:9</div>
<div class="MsoNormal">
(c) 1:27 (d)
9:1</div>
<div class="MsoNormal">
Ans. (c) 1:27</div>
<div class="MsoNormal">
Q: A*B=B*A, then the angle between A and B is</div>
<div class="MsoNormal">
O: (a) π (b)
π/3</div>
<div class="MsoNormal">
(c) π/2 (d)
π/4</div>
<div class="MsoNormal">
Ans. (a) π</div>
<div class="MsoNormal">
Q: Two equal vectors have a resultant equal to either of
them, then the angle between them will be</div>
<div class="MsoNormal">
O: (a) 120 degree (b)
110 degree</div>
<div class="MsoNormal">
(c) 60 degree (d)
150 degree</div>
<div class="MsoNormal">
Ans. (a) 120 degree</div>
<div class="MsoNormal">
Q: Two vectors are perpendicular, if</div>
<div class="MsoNormal">
O: (a) A.B=1 (b)
A*B=0</div>
<div class="MsoNormal">
(c) A.B=0 (d) A*B=AB</div>
<div class="MsoNormal">
Ans. (c) A.B=0</div>
<div class="MsoNormal">
Q: A body of mass m is tied to one
end of a spring and whirled round in a horizontal plane with a constant angular
velocity. The elongation in the spring 1cm. If the angular velocity is doubled,
the elongation in the string is 5cm. The original length of the spring is </div>
<div class="MsoNormal">
O: (a) 16cm (b) 15cm</div>
<div class="MsoNormal">
(c) 14cm (d)
13cm</div>
<div class="MsoNormal">
Ans. (b) 15cm</div>
<div class="MsoNormal">
Q: If a person can throw a stone to
maximum height of h meter vertically, then the maximum distance through which
it can be thrown horizontally by the same person is</div>
<div class="MsoNormal">
O: (a) h/2 (b) h</div>
<div class="MsoNormal">
(c) 2h (d)
3h</div>
<div class="MsoNormal">
Ans. (c) 2h</div>
<div class="MsoNormal">
Q: Force responsible for the
circular motion of the body is</div>
<div class="MsoNormal">
O: (a) centripetal force (b) centrifugal force </div>
<div class="MsoNormal">
(c) gravitational force (d) None of these</div>
<br />
<div class="MsoNormal">
Ans. (a) centripetal force</div>
</div>
Debasis Mandalhttp://www.blogger.com/profile/12252530618391559851noreply@blogger.com0tag:blogger.com,1999:blog-3304647880328127990.post-62680927792484733072016-01-12T19:35:00.000-08:002016-02-05T19:23:18.378-08:00Physics (part-1)<html>
<head><title>
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<title>debasisanswer.blogspot.com</title>
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<body>
<br>
<div><h3>Q:If the linear momentum of a body is increased by 50% then the kinetic energy of that body increases by</div></h3>
<h4><p><br>O: (a) 100% (b) 200%</p>
<p>(c) 225% (d) 25%</p>
<p>Ans. (b) 125%</p></h4>
</br>
<br>
<div><h3>Q: A body 2kg is thrown up vertically with kinetic energy of 490J. If g=9.8 ms-2, the height at which the kinetic energy of the body becomes half of the original value, is</div></h3>
<h4><p>O: (a) 50 m (b) 25m</p>
<p> (c) 12.5m (d) 19.6m</p>
<p>Ans. (c) 12.5m</p></h4>
</br>
<br>
<div><h3>Q: A rod of length L and mass m is kept vertically on the ground. Its potential energy is</div></h3>
<h4><p>O: (a) mgl (b) mgL/2</p>
<p> (c) mgL/3 (d) mgL/4</p>
<p>Ans. (b) mgL/2</p></h4>
</br>
<br>
<div><h3>Q: A bomb of 12kg explodes into two pieces of masses 4kg and 8kg mass is 6 ms-1. The kinetic energy of the other mass is</div></h3>
<h4><p>O: (a) 348J (b) 332 J</p>
<p>(c) 324J (d) 288J</p>
<p>Ans. (d) 288J</p></h4>
</br>
<br>
<div><h3>Q: If a sphere is rolling, then the ratio of its rotational kinetic energy to the total kinetic energy is</div></h3>
<h4><p>O: (a) 1:2 (b) 2:5</p>
<p>(c) 2:7 (d) 5:7</p>
<p>Ans. (c) 2:7</p></h4>
</br>
<div id="ayboll-w-8994"></div><script type="text/javascript">window._aybollw=window._aybollw||[];_aybollw.push(["id", "8994"]);</script>
<br>
<div><h3>Q: A person, with outstretched arms, is spinning on a rotating stool. He suddenly brings his arms down to his sides. Which of the following is true about his kinetic energy K and angular momentum L?</div></h3>
<h4><p>O: (a) Both K and L increased. (b) Both K and L remain unchanged.</p>
<p>(c) K remains constant. (d) K increased but L remains constant.</p>
<p>Ans. (d) K increased but L remains constant.</p></h4>
</br>
<br>
<h3><div>Q: A gas is compressed adiabatically till its temperature is doubled. The ratio of its final volume will be </div></h3>
<h4><p>O: (a) 1/2 (b) more then 1/2</p>
<p>(c) less then 1/2 (d) between 1 and 2</p>
<p>Ans. (c) less then 1/2</p></h4>
</br>
<br>
<div><h3>Q: A resonance tube is resonated with tuning fork of frequency 256Hz. If the length of resonating air columns is 32cm and 100cm, then end correction will be</h3></div>
<h4><p>O: (a) 1cm (b) 2cm</p>
<p>(c) 4cm (d) 6cm</p>
<p>Ans. (b) 2cm</p></h4>
</br>
<br>
<div><h3>Q: An achromatic combination of lenses has the power of convex lens 2D and ratio of dispersive powers of lenses are equal then the focal length of concave lens is</h3></div>
<h4><p>O: (a) -50cm (b) 100cm</p>
<p>(c) 20cm (d) 200cm</p>
<p>Ans. (a) -50cm</p></h4>
</br>
<br>
<div><h3>Q: Half-life of a radioactive substance is 20 minute. The time between 20% and 80% decay will be</h3></div>
<h4><p>O: (a) 20 min (b) 30 min</p>
<p>(c) 40 min (d) 25 min</p>
<p>Ans. (c) 40 min</p></h4>
</br>
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</html>Debasis Mandalhttp://www.blogger.com/profile/12252530618391559851noreply@blogger.com0tag:blogger.com,1999:blog-3304647880328127990.post-32202976192338561812015-01-04T18:26:00.000-08:002015-01-04T18:26:35.905-08:00Biology. (part-2)
<html>
<head>
<title></title>
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<meta name ="Description" content=" Binomial nomenclature of plants was given by, Prantl, Engler, Linnaeus, Both (a) and (b), Linnaeus, The concept of genus was proposed by, Hooker, John Ray, Bessey, Tourne Fort, Hooker, Term ‘New Systematics’ was given by, Julian Huxley, Darwin, Bateson, Linnaeus, Julian Huxley, ICBN stands for, Indian code of Botanical Name, International Congress of Biological Name, International Code for Botanical Nomenclature, Indian Congress of Biological Name, International Code for Botanical Nomenclature, Which one of the following branch is applicable to both plants and animals, Saurology, Taxonomy, Herpetology, Ichthyology, Taxonomy, Binomial nomenclature means that every organism has, One scientific name consisting of a generic and a specific epithet, One name given by tow scientists, Two names one scientific and other popular, Tow names, one Latinize and other of the person, One scientific name consisting of a generic and a specific epithet, The term ‘Species’ was coined by, Linnaeus, Engler, Aristotle, John Ray, John Ray, Taxon is a/an, Sub-division of Kingdom, Any rank in taxonomic hierarchy, Group of same species, Group of similar genera, Any rank in taxonomic hierarchy, Five Kingdom scheme to classify living beings was given by, RH Whittaker, G G Simpson, E Mayr, J B S Haldane, R H Whittaker, Evolutionary history of an organism is known as, Ancestry, Ontogey, Phylogeny, Palaeontology, Phylogeny."/>
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<br><div><h3>Q: Binomial nomenclature of plants was given by</h3></div>
<div><h4>O: (a) Prantl.</h4></div>
<div><h4>(b) Engler.</h4></div>
<div><h4>(c) Linnaeus.</h4></div>
<div><h4>(d) Both (a)and(b)</h4></div>
<div><h4>A: (c) Linnaeus.</h4></div></br>
<br><div><h3>Q: The concept of genus was proposed by</h3></div>
<div><h4>O: (a) Hooker.</h4></div>
<div><h4>(b) John Ray.</h4></div>
<div><h4> (c) Bessey.</h4></div>
<div><h4> (d) Tourne Fort.</h4></div>
<div><h4>A: (a) Hooker.</h4></div></br>
<br><div><h3>Q: Term ‘New Systematics’ was given by</h3></div>
<div><h4>O: (a) Julian Huxley.</h4></div>
<div><h4> (b) Darwin.</h4></div>
<div><h4>(c) Bateson.</h4></div>
<div><h4>(d) Linnaeus.</h4></div>
<div><h4>A: (a) Julian Huxley.</h4></div></br>
<br><div><h3>Q: ICBN stands for</h3></div>
<div><h4>O: (a) Indian code of Botanical Name.</h4></div>
<div><h4> (b) International Congress of Biological Name.</h4></div>
<div><h4> (c) International Code for Botanical Nomenclature.</h4></div>
<div><h4> (d) Indian Congress of Biological Name.</h4></div>
<div><h4>A: (c) International Code for Botanical Nomenclature.</h4></div></br>
<br><div><h3>Q: Which one of the following branch is applicable to both plants and animals?</h3></div>
<div><h4>O: (a) Saurology.</h4></div>
<div><h4>(b) Taxonomy.</h4></div>
<div><h4> (c) Herpetology.</h4></div>
<div><h4> (d) Ichthyology.</h4></div>
<div><h4>A: (b) Taxonomy.</h4></div></br>
<br><div><h3>Q: Binomial nomenclature means that every organism has</h3></div>
<div><h4>O: (a) One scientific name consisting of a generic and a specific epithet.</h4></div>
<div><h4> (b) One name given by tow scientists.</h4></div>
<div><h4> (c) Two names one scientific and other popular.</h4></div>
<div><h4> (d) Tow names, one Latinize and other of the person.</h4></div>
<div><h4>A: (a) One scientific name consisting of a generic and a specific epithet.</h4></div></br>
<br><div><h3>Q: The term ‘Species’ was coined by</h3></div>
<div><h4>O: (a) Linnaeus.</h4></div>
<div><h4> (b) Engler.</h4></div>
<div><h4> (c) Aristotle.</h4></div>
<div><h4> (d) John Ray.</h4></div>
<div><h4>A: (d) John Ray.</h4></div></br>
<br><div><h3>Q: Taxon is a/an</h3></div>
<div><h4>O: (a) Sub-division of Kingdom.</h4></div>
<div><h4> (b) Any rank in taxonomic hierarchy.</h4></div>
<div><h4> (c) Group of same species.</h4></div>
<div><h4> (d) Group of similar genera.</h4></div>
<div><h4>A: (b) Any rank in taxonomic hierarchy.</h4></div></br>
<br><div><h3>Q: Five Kingdom scheme to classify living beings was given by</h3></div>
<div><h4>O: (a) RH Whittaker.</h4></div>
<div><h4> (b) G G Simpson.</h4></div>
<div><h4> (c) E Mayr.</h4></div>
<div><h4> (d) J B S Haldane.</h4></div>
<div><h4>A: (a) R H Whittaker.</h4></div></br>
<br><div><h3>Q: Evolutionary history of an organism is known as</h3></div>
<div><h4>O: (a) Ancestry.</h4></div>
<div><h4> (b) Ontogey.</h4></div>
<div><h4> (c) Phylogeny.</h4></div>
<div><h4> (d) Palaeontology.</h4></div>
<div><h4>A: (C) Phylogeny.</h4></div></br>
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</html>Debasis Mandalhttp://www.blogger.com/profile/12252530618391559851noreply@blogger.com0tag:blogger.com,1999:blog-3304647880328127990.post-72495463350587367722014-12-28T01:26:00.000-08:002014-12-31T07:01:05.103-08:00Biology-(The Living World) (part-1)<html>
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<meta name ="Description" content="Q: Tautonym is
O: (a) Nonlatinised name.
(b) Unscientific explanation of a phenomenon.
(c) Common name used as a scientific name.
(d) Same name for genus and species.
A: (d) Same name for genus and species.
Q: Correct name is
O: (a) Mangifera Indica.
(b) Brassica Indica.
(c) Solanum Melongina.
(d) Mimosa Pudica.
A: (b) Brassica Indica.
Q: Taxonomic hierarchy refers to
O: (a) Stepwise arrangement of all categories for classification of plant and animals.
(b) Classification of a species based on fossil record.
(c). A groups of senior taxonomists, who decide the nomenclature of plants and animals.
(d) A list of botanists or Zoologists, who have worked on taxonomy of a species or group
A: (a) Stepwise arrangement of all categories for classification of plant and animals.
Q: Identify form the following the only taxonomic category that has a real existence.
O: (a) Phylum.
(b) Species.
(c) Genus.
(d) Kingdom.
A: (b) Species.
Q: The basic unit of classification is
O: (a) Species.
(b) Genus.
(c) Phylum.
(d) Family.
A: (a) Species.
Q: The number of species classified in ‘Species Plantarum’ is
O: (a) 3800
(b) 6000
(c) 4000
(d) 5000
A: (b) 6000
Q: A germplasm collection is a
O: (a) Collection of specimens of all the species of an area in a herbarium or botanical garden.
(b) Collection of seeds or pollen of rare and threatened species of a group or area.
(c) Collection of modern varieties of a crop.
(d) Collection of plants or seeds having diverse alleles of all genes in a crop.
A: (d) Collection of plants or seeds having diverse alleles of all genes in a crop.
Q: Father of botany is
O: (a) Aristotle.
(b) Robert Hooke.
(c) Darwin.
(d) Theophrastus.
A: (d) Theophrastus.
Q: The biological concept of species was formulated by
O: (a) Mayr.
(b) Heywood.
(c) Stebbins.
(d) Natural.
A: (a) Mayr.
Q: Category among following is
O: (a) Thalamiflorae.
(b) Malvaceae.
(c) Species.
(d)Dicotyledonae.
A: (c) Species.
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<br><div><h3>Q: Tautonym is</h3></div>
<div><h4>O: (a) Nonlatinised name.</h4></div>
<div><h4>(b) Unscientific explanation of a phenomenon.</h4></div>
<div><h4>(c) Common name used as a scientific name.</h4></div>
<div><h4>(d) Same name for genus and species.</h4></div>
<div><h4>A: (d) Same name for genus and species.</h4></div></br>
<br><div><h3>Q: Correct name is </h3></div>
<div><h4>O: (a) Mangifera Indica.</h4></div>
<div><h4>(b) Brassica Indica.</h4></div>
<div><h4>(c) Solanum Melongina.</h4></div>
<div><h4>(d) Mimosa Pudica.</h4></div>
<div><h4>A: (b) Brassica Indica.</h4></div></br>
<br><div><h3>Q: Taxonomic hierarchy refers to</h3></div>
<div><h4>O: (a) Stepwise arrangement of all categories for classification of plant and animals.</h4></div>
<div><h4>(b) Classification of a species based on fossil record.</h4></div>
<div><h4>(c). A groups of senior taxonomists, who decide the nomenclature of plants and animals.</h4></div>
<div><h4>(d) A list of botanists or Zoologists, who have worked on taxonomy of a species or group</h4></div>
<div><h4>A: (a) Stepwise arrangement of all categories for classification of plant and animals.</h4></div></br>
<br><div><h3>Q: Identify form the following the only taxonomic category that has a real existence.</h3></div>
<div><h4>O: (a) Phylum.</h4></div>
<div><h4>(b) Species.</h4></div>
<div><h4>(c) Genus.</h4></div>
<div><h4>(d) Kingdom.</h4></div>
<div><h4>A: (b) Species.</h4></div></br>
<br><div><h3>Q: The basic unit of classification is</h3></div>
<div><h4>O: (a) Species.</h4></div>
<div><h4>(b) Genus.</h4></div>
<div><h4>(c) Phylum.</h4></div>
<div><h4>(d) Family.</h4></div>
<div><h4>A: (a) Species. </h4></div></br>
<br><div><h3>Q: The number of species classified in ‘Species Plantarum’ is</h3></div>
<div><h4>O: (a) 3800</h4></div>
<div><h4>(b) 6000</h4></div>
<div><h4>(c) 4000</h4></div>
<div><h4>(d) 5000</h4></div>
<div><h4>A: (b) 6000</h4></div></br>
<br><div><h3>Q: A germplasm collection is a</h3></div>
<div><h4>O: (a) Collection of specimens of all the species of an area in a herbarium or botanical garden.</h4></div>
<div><h4>(b) Collection of seeds or pollen of rare and threatened species of a group or area.</h4></div>
<div><h4>(c) Collection of modern varieties of a crop.</h4></div>
<div><h4>(d) Collection of plants or seeds having diverse alleles of all genes in a crop.</h4></div>
<div><h4>A: (d) Collection of plants or seeds having diverse alleles of all genes in a crop.</h4></div></br>
<br><div><h3>Q: Father of botany is</h3></div>
<div><h4>O: (a) Aristotle.</h4></div>
<div><h4>(b) Robert Hooke.</h4></div>
<div><h4>(c) Darwin.</h4></div>
<div><h4>(d) Theophrastus.</h4></div>
<div><h4>A: (d) Theophrastus.</h4></div></br>
<br><div><h3>Q: The biological concept of species was formulated by</h3></div>
<div><h4>O: (a) Mayr.</h4></div>
<div><h4>(b) Heywood.</h4></div>
<div><h4>(c) Stebbins.</h4></div>
<div><h4>(d) Natural.</h4></div>
<div><h4>A: (a) Mayr.</h4></div></br>
<br><div><h3>Q: Category among following is</h3></div>
<div><h4>O: (a) Thalamiflorae.</h4></div>
<div><h4>(b) Malvaceae.</h4></div>
<div><h4>(c) Species.</h4></div>
<div><h4>(d)Dicotyledonae.</h4></div>
<div><h4>A: (c) Species.</h4></div></br>
<br><tr>
<td>1</td>
<td>2</td>
<td>3</td>
<td>4</td>
<td>5</td>
<td>6</td>
<td>7</td>
<td>8</td>
<td>9</td>
<td>10</td>
</tr></br>
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</html>Debasis Mandalhttp://www.blogger.com/profile/12252530618391559851noreply@blogger.com0tag:blogger.com,1999:blog-3304647880328127990.post-74690984013546533912014-12-26T01:58:00.001-08:002014-12-26T02:11:56.981-08:00Organic Chemistry (part-2).
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<br><div><h3>Q: Which of the following compounds exhibit rotamers ?</h3></div>
<div><h4>O: (a) 2-butene. (b) Maleic acid. </h4></div>
<div><h4> (c) Butane. (d) Fumeric acid. </h4></div>
<div><h4>A: (c) Butane. </h4></div></br>
<br><div><h3>Q: How many numbers of possible stereoisomers are there of 2,3,4-trichloro pentanoic acid?</h3></div>
<div><h4>O: (a) 8 (b) 12 </h4></div>
<div><h4> (c) 16 (d) 4 </h4></div>
<div><h4>A: (a) 8 </h4></div><br>
<br><div><h3>Q: The number of opically active isomers of tatraic acid are</h3></div>
<div><h4>O: (a) 1 (b) 3 </h4></div>
<div><h4> (c) 4 (d) 2 </h4></div>
<div><h4>A: (c) 3 </h4></div></br>
<br><div><h3>Q: How many enantiomer pairs are obtained by monochlorination of 2,3-dimetylbutane?</h3></div>
<div><h4>O: (a) Zero. (b) Four. </h4></div>
<div><h4> (c) Tow. (d) Three. </h4></div>
<div><h4> (e) One. </h4></div>
<div><h4>A: (c) Two. </h4></div></br>
<br><div><h3>Q: The total number of acyclic structural and optical isomers possible for a hydrocarbon of molecular</h3></div>
<div><h4>O: (a) 12 (b) 8 </h4></div>
<div><h4> (c) 10 (d) 6 </h4></div>
<div><h4>A: (b) 8</h4></div></br>
<br><div><h3>Q: The total number of possible isomeric trimethyl benzene is </h3></div>
<div><h4>O: (a) 2 (b) 3 </h4></div>
<div><h4>(c) 4 (d) 6 </h4></div>
<div><h4>A: (b) 3 </h4></div></br>
<br><div><h3>Q: A chemical compound is heated and dried. To get accurate weight of this compound, one shuld</h3></div>
<div><h4>O: (a) Cool in dessicator.</h4></div>
<div><h4>(b) Weigh in warm conditions.</h4></div>
<div><h4>(c) Weigh after cooling.</h4></div>
<div><h4>(d) Blow air through it.</h4></div>
<div><h4>A: (a) Cool in dessicator.</h4></div></br>
<br><div><h3>Q: An organic compound weighing 0.31g gave 0.444g of magnesium pyrophosphate in the estimation of phosphorus by Carius method.The percentage of P in the compound is</h3></div>
<div><h4>O: (a) 20 (b) 60 </h4></div>
<div><h4>(c) 15 (d) 30 </h4></div>
<div><h4>(e) 40 </h4></div>
<div><h4>A: (e) 40 </h4></div></br>
<br><div><h3>Q: Which of the following compounds gives blood red colouration when its Lassaigne’s extract is treated with alkali and ferric chloride?</h3></div>
<div><h4>O: (a) Thiourea. (b) Diphenyl sulphide. </h4></div>
<div><h4>(c) Phenyl hydrazine. (d) Benzamide. </h4></div>
<div><h4>A: (a) Thiourea. </h4></div></br>
<br><div><h3>Q: Dehydration of alcohol is an example of which type of reaction?</h3></div>
<div><h4>O: (a) Substitution. (b) Elimination. </h4></div>
<div><h4> (c) Addition. (d) Rearrangement. </h4></div>
<div><h4>A: (b) Elimination. </h4></div></br>
<br><tr>
<td><a href="debasisanswer.blogspot.in/2014/12/blog-post_22.html">1</a></td>
<td>2</td>
<td>3</td>
<td>4</td>
<td>5</td>
<td>6</td>
<td>7</td>
<td>8</td>
<td>9</td>
<td>10</td>
</tr></br>
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<br><div><h3>Q: Sublimation is a process in which a solid</h3></div>
<div><h4>O: (a) Changes into vapour form. (b) Changes into another allotropic form.</h4></div>
<div><h4>(c) Changes into liquid form. (d) None of the above.</h4></div>
<div><h4>A: (a) Changes is a vapour form.</h4></div>
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<br><div><h3>Q: Which is purified by steam distillation?</h3></div>
<div><h4>O: (a) Aniline. (b) Benzoic acid.</h4></div>
<div><h4> (c) Petroleum. (d) Naphthalene.</h4></div>
<div><h4>A: (a) Aniline.</h4></div>
<br><div><h3>Q: Which of the following compound shows aromatic properties?</h3></div>
<div><h4>O: (a) Valine. (b) Leucine.</h4></div>
<div><h4> (c) Serine. (d) Tyrosine.</h4></div>
<div><h4>A: (d) Tyrosine.</h4></div>
<br><div><h3>Q: Lassaigne’s test is not used for the detection of</h3></div>
<div><h4>O: (a) Carbon. (b) Halogens.</h4></div>
<div><h4>(c) Nitrogen. (d) Sulphur.</h4></div>
<div><h4>A: (a) Carbon.</h4></div>
<br><div><h3>Q: Monobromination of 2-methyylbutane give how many distinct isomers?</h3></div>
<div><h4>O: (a) One. (b) Two.</h4></div>
<div><h4>(b) Three. (d) Four.</h4></div>
<div><h4>A: (d) Four.</h4></div></br>
<br><div><h3>Q: Which one of the following is a non-benzenoid aromatic compound? </h3></div>
<div><h4>O: (a) Aniline. (b) Naphthalene. </h4></div>
<div><h4>(c) Benzoic acid. (d) Tropolone. </h4></div>
<div><h4>(e) Anthracene. </h4></div>
<div><h4>A: (d) Tropolone. </h4></div></br>
<br><div><h3>Q: Which one of the following is aromatic? </h3></div>
<div><h4>O: (a) Cyclopentadienyl cation. (b) Cyclo-octateraene. </h4></div>
<div><h4> (c) Cycloheptariene. (d) Cycloheptarienyl cation. </h4></div>
<div><h4>A: (d) Cycloheptarienyl cation. </h4></div></br>
<br><div><h3>Q: How many chiral carbon atoms are present in 2,3,4-trichloropentane? </h3></div>
<div><h4>O: (a) 4 (b) 1 </h4></div>
<div><h4>(c) 2 (d) 3 </h4></div>
<div><h4>A: (c) 2 </h4></div>
<br><div><h3> Q: A compound has tow different asymmetric carbon then the number of stereomers </h3></div>
<div><h4> O: (a) 4 (b) 2 </h4></div>
<div><h4> (c) 3 (d) 1 </h4></div>
<div><h4> A: (a) 4 </h4></div>
<br><div><h3> Q: A compound has 3 chiral carbon atoms. The number of possible optical isomers it cam have </h3></div>
<div><h4> O: (a) 3 (b) 3 </h4></div>
<div><h4> (c) 8 (d) 4 </h4></div>
<div><h4> A: (c) 8 </h4></div>
<br><tr>
<td>1</td>
<td><a href="debasisanswer.blogspot.in/2014/12/organic-chemistry.html">2</a></td>
<td>3</td>
<td>4</td>
<td>5</td>
<td>6</td>
<td>7</td>
<td>8</td>
<td>9</td>
<td>10</td>
</tr></br>
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