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1.Pencillin is extracted from —

पेनिसिसिि का उद्धरण होता है – (a) yeast/ ख़मीर (b) algae/ शवैाि (c) fungus / कवक (d) lichen/ िाइकेि

C

Sol. Penicillin is produced from the genus of fungi

“penicillia”. All penicillin are â-lactam antibiotics and are

used in the treatment of bacterial infections caused by

susceptible, usually Gram-positive, organisms.

2.Mechanical waves

याांत्रिक तरांगें- (a) are longitudinal only/ केवि अिदैुर्धयय हैं (b) transverse only/ केवि अिपु्रस्थ (c) can be both longitudinal and transverse/ अिदैुर्धयय और अिपु्रस्थ दोिों हो िकते हैं (d) none of these/इिमें िे कोई िह ां

C

Sol.A mechanical wave is a wave that is an oscillation of

matter, and therefore transfers energy through a medium.

Mechanical waves can be both longitudinal and transverse.

3.Spiders are different from insects because they have –

मकड़ी, कीड़ों िे सिन्ि हैं, क्योंकक उिके पाि ______ हैं.

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(a) Six legs(छ: टाांगे) (b) Eight legs(आठ टाांग)े (c) Ten legs(दि परै) (d) Twelve legs(बारह टाांगे)

B

Sol.

Spiders belong to a group of animals called “arachnids”.

Arachnids are a creature with two body segments, eight

legs, no wings or antennae. Rest three options are insects.

They have six legs, while spider has eight legs. Thus spider

is not an insect.

4.A ray of light travelling obliquely from denser to rarer

medium

प्रकाश की एक ककरण िघि िे दिुयि मार्धयम तक यािा करती है तो वह (a) Bends towards the normal/ िामान्य की ओर झकुती है (b) Bends away from the normal/ िामान्य िे दरू झकुती है (c) Does deviate from its path/ अपिे मागय िे िटक जाती है (d)None of these/इिमें िे कोई िह ां

B

Sol. A ray of light travelling obliquely from denser to rarer

medium Bends away from the normal.

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5.Transverse waves can propagate

अिपु्रस्थ तरांगे ककि में फैि िकती हैं? (a) both in a gas and in a metal/ गैि और धातु दोिों में (b) in a gas but not in a metal/ गैि में िेककि धातु में िह ां (c) not in a gas but in a metal/ गैि में िह ां परन्तु एक धातु में (d) neither in a gas nor in a metal/ ि तो गैि में और ि ह धातु में

C

Sol. The particles in transverse waves move perpendicularly

to the direction of propagation so it cannot propagate in a

gas or a liquid because there is no mechanism for driving

motion perpendicular to the propagation of the wave.

6.In modern periodic table, the group number is

आधनुिक आवतय िारणी में, िमहू की िांख्या ककतिी है? (a) 15

(b) 16

(c) 17

(d) 18

D

Sol. A group is a column of elements in the periodic table of

the chemical elements. There are 18 numbered groups in the

periodic table.

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7.Plants growing on rocks are called :

चट्टािों पर उगि ेवािे पौधों को क्या कहा जाता है: (a) Epiphytes(एपीफाईट) (b) Halophytes(हेिोफाईट ) (c) Xerophytes(ज़ेरोफाईट ) (d) Lithophytes(सिथोफाईट)

D

Sol.

Lithophytes are plants that grow in or on rocks. Lithophytes

feed off nutrients from rain water and near by decaying

plants, including their own dead tissue.

8.Waves which do not require any material medium for its

propagation is–

तरांगे जजिके प्रिार के सिए ककिी िी िौनतक मार्धयम की आवश्यकता िह ां होती है- (a) Matter waves/ द्रव्य तरांगें (b) Mechanical waves/ याांत्रिक तरांगें (c) Elastic waves/ िोचदार िहरें (d) Electromagnetic waves/ ववद्यतुचमु्बकीय तरांगें

D

Sol. Electromagnetic waves differ from mechanical waves in

that they do not require a medium to propagate. This means

that electromagnetic waves can travel not only through air

and solid materials, but also through the vacuum of space.

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9.The laws of reflection are true for

परावतयि के नियम ककि के सिए ित्य हैं? (a) The plane mirror only/ केवि िमति दपयण (b) The concave mirror only/ केवि अवति दपयण (c) The convex mirror only/ केवि उत्ति दपयण (d)All reflecting surfaces/ ििी प्रनतत्रबांत्रबत ितहों

D

Sol. The law of reflection states that the incident ray, the

reflected ray, and the normal to the surface of the mirror all

lie in the same plane. The laws of reflection are true for all

reflecting surfaces.

10.Elements of d-block are called–

डी-ब्िॉक के तत्वों को क्या कहा जाता है? (a) Transition element / िांक्रमण तत्व (b) Transuranic elements/ ट्ाांिजेनिक तत्व (c) Metals/ धात ु(d) Metalloids /उपधात ु

A

Sol. The d-block elements are found in the middle of the

period table. The d-block elements are called transition

metals and have valence electrons in d orbital’s.

11.The characteristic odour of garlic is due to –

िहििु की ववसशष्ट गांध का कारण है:

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(a) A chloro compound(एक क्िोरो यौगगक) (b) A sulphur compound(एक िल्फर यौगगक) (c) A fluorine compound(एक फ्िोर ि यौगगक) (d) Acetic acid(सिरका अम्ि)

B

Sol.

Garlic is made up of sulphuric compounds (Ally

methyl sulphide) that render the pungent smell to it.

12.The period of pendulum depends upon

पेंडुिम की अवगध ककि पर निियर करती है? (a) mass /द्रव्यमाि (b) length/िम्बाई (c) amplitude/ आयाम (d) energy/ ऊजाय

B

Sol. The period of swing of a simple gravity pendulum

depends on its length.

13.The focal length of a plane mirror is

िमति दपयण की फोकि िांबाई क्या होती है? (a) Positive/ िकारात्मक (b) Negative/ ऋणात्मक (c) Zero /शनू्य (d)Infinity/ अिन्तता

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D

Sol. The radius of Curvature of plane mirror is infinite, hence

the focal length of plane mirror will also be infinite.

14.The product of the time period of a wave and its

frequency is

ककिी तरांग की िमयावगध और उिकी आववृत्त का गणुिफि क्या होता है? (a) infinite/ अिांत (b) zero/शनू्य (c) unity/यनूिट (d) None /कोई िह ां

C

Sol. Frequency is the number of occurrences of a repeating

event per unit of time. It is also referred to as temporal

frequency, which emphasizes the contrast to spatial

frequency and angular frequency. The period is the duration

of time of one cycle in a repeating event, so the period is the

reciprocal of the frequency.so The product of the time

period of a wave and its frequency is unity.

15.Which element of the following does not exist in liquid

state at room temperature ?

निम्िसिखित में िे कौि िा तत्व कमरे के तापमाि पर तरि अवस्था में िह ां होता है? (a) Na

(b) Br

(c) Hg

(d) Cs

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A

Sol. (Na) does not exist in liquid state at room

temperature.But Bromine (Br) and mercury (Hg). Although,

elements caesium (Cs), rubidium (Rb), Francium (Fr) and

Gallium (Ga) are liquid state at room temperature.

16.In which part of the cinchona plant quinine occurs

naturally ?

सिांकोिा पौधे जक्वनिि के ककि हहस्िे में स्वािाववक रूप िे होता है? (a) Root(जड़) (b) Fruit(फि) (c) Seed(बीज) (d) Bark(छाि)

D

Sol. Quinine is a major drug used to treat malaria. Quinine is

extracted from the bark of Cinchona tree.

17.A number of images of a candle flame are seen in thick

mirror

मोमबत्ती की िौ की कई छववयाां मोटे दपयण में देिी जाती हैं (a)The first image is the brightest/ पहि छवव िबिे चमकदार है (b)The second image is the brightest/ दिूर छवव िबिे चमकदार है (c) The last image is the brightest/ अांनतम छवव िबिे चमकदार है (d)All images are equally brightest/ ििी गचि िमाि रूप िे उज्जज्जवि हैं

B

Sol. A number of images of a candle flame are seen in thick

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mirror the second image is the brightest because of the

second image is formed after reflection from rear silvered

surface, which sends maximum amount of light.

18.Ergotism is due to consumption of:

ठोंठी ककिके उपिोग के कारण होता है? (a) Contaminated grains(दवूित अिाज ) (b) Rotting vegetables(बकेार िजब्जयों) (c) Contaminated water(दवूित पािी) (d) Safe cooked food(िरुक्षित पके हुए िोजि)

A

Sol. Ergotism is a disease caused by consumption of

contaminated grains. It is the effect of long-term ergot

poisoning, traditionally due to the ingestion of the alkaloids

produced by the Claviceps purpurea fungus that infects rye

and other cereals.

19.After bringing out of water fishes die because

मछसियाां पािी िे बाहर निकिि ेके बाद मर जाती हैं क्योंकक: (a) They get excess quantity of oxygen(उन्हें ऑक्िीजि की अनतररक्त मािा समिती है) (b) Their body temperature increases(उिके शर र का तापमाि बढ़ जाता है) (c) They cannot breathe(वे िााँि िह ां िे िकते) (d) They can not move in water(वे पािी में िह ां जा िकत)े

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C

Sol. Fish use gills to breath and gills can only bring in

oxygen when moist. Out of water, a fish’s gills dries out and

then the fish dies.

20.When a ray or light enters a glass slab from air

जब एक ककरण या प्रकाश हवा िे एक ग्िाि स्िबै में प्रवेश करती है, तो- (a) Its wavelength decreases/ इिका तरांग दैर्धयय घट जाता है (b) Its wavelength increases/ इिका तरांग दैर्धयय बढ़ जाता है (c) Its frequency increases/ इिकी आववृत्त बढ़ जाती है (d) Neighter its wavelength nor its frequency changes/ ि तो इिकी तरांग दैर्धयय और ि ह इिकी आववृत्त में पररवतयि होता है

A

Sol. When a ray or light enters a glass slab from air Its

wavelength decreases.

21.Which is the effect of antigen in an ill person ?

ककिी बीमार व्यजक्त पर प्रनतजि का क्या प्रिाव होता है? (a) It increases the production of W.B.C. / यह W.B.C. का उत्पादि बढ़ाता है (b) It increases the production of antibiotics/ यह एांट बायोहटक्ि का उत्पादि बढ़ता है (c) It increase the production of anti-serum against bacteria

/ यह बकै्ट ररया के खििाफ प्रनतिीरमी का उत्पादि बढ़ाता है (d) It prevents the growth of bacteria / यह बकै्ट ररया के ववकाि को रोकता है

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B

Sol. Vaccines containing antigens are introduced into the

body, stimulating the immune system response by

instructing B cells, with assistance from T cells,

to produce antibodies. Antibodies are produced to fight the

weakened or dead viruses in the vaccine.The immune

system prepares to destroy real and

stronger viruses in the future. When new antigens enter the

body, white blood cells called macrophages engulf them;

process the information contained in

the antigens, and send it to the T cells so that an immune

system response can be mobilized.

22.Oxidation-reduction reaction involves

ऑक्िीकरण- अपचयि असिकक्रया में शासमि है (a) Transfer of neutrons/ न्यटू्ॉि का स्थािाांतरण (b) Transfer of protons/ प्रोटॉि का स्थािाांतरण (c) Transfer of electrons/ इिेक्ट्ॉिों का स्थािाांतरण (d) None of above/उपरोक्त में िे कोई िह ां

C

Sol. An oxidation-reduction (redox) reaction is a type of

chemical reaction that involves a transfer of electrons

between two species.

23.The unit of heredity in our body is called

हमारे शर र में आिवुांसशकता की इकाई को कहा जाता है (a) Chromosome(क्रोमोिाम) (b) DNA

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(c) Gene(जीि) (d) Nucleus(िासिक)

C

Sol. A gene is the basic physical and functional unit of

heredity.

24. Uric acid is present in / यरूरक अम्ि में पाया जाता है (a) Soda water / िोडा-वाटर (b) Rancid butter / बािी मक्िि (c) Sour milk / िट्टा दधू (d) Urine of mammals / स्तिपायी का मिू

D

Sol. Uric acid is normally cleaned out of the blood by the

kidneys, and passes out of the body along with urine.

25.Which among the following is a large spectrum

Antibiotic?

निम्िसिखित में िे कौि िा एक बड़ा स्पेक्ट्म एांट बायोहटक है? (a) Paracetamol / परैासिटामोि (b) Pencillin / पनेिसिसिि (c) Ampicillin / एम्पीसिि ि (d) Chlormphenicol/ क्िोम्फेनिकोि

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C

Sol. Ampicillin is the large spectrum anti-biotic most

commonly used. Ampicillin is a beta-lactam antibiotic that is

part of the amino-penicillin family and is roughly equivalent

to its successor, amoxicillin in terms of spectrum and level

of activity.

26.Average blood pressure of a human is –

मािव का औित रक्तचाप है– (a) 60/100

(b) 20/80

(c) 60/140

(d) 120/80

D

Sol. Ideally, a normal human must have a blood pressure

(120/80). This means that systolic pressure around 120 mm

Hg and diastolic pressure should be around 80 mm Hg.

27.Angora wool is extracted from-

अांगोरा ऊि ककि िे प्राप्त होता है? (a) Rabbit / िरगोश (b) Sheep / िेड़ (c) Fox / िोमड़ी (d) Goat / बकर

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A

Sol. Angora wool refers to the downy coat produced by the

Angora rabbit. Angora is known for its softness, thin fibres,

and what knitters refer to as a halo (fluffiness). It is also

known for its silky texture. It is much warmer and lighter

than wool.

28.Carbon monoxide poisoning affects mainly which one of

the following ?

काबयि मोिोऑक्िाइड वविाक्तता मखु्य रूप िे निम्िसिखित में िे ककिे प्रिाववत करता है? (a) Digestive activity(पाचि गनतववगध) (b) Liver functioning(जजगर की कायय पद्दनत) (c) Kidney functioning(गुदों की कायय पद्दनत) (d) Oxygen carrying capacity of blood(रक्त की आक्िीजि िे जाि ेवाि िमता)

D

Sol. Carbon monoxide mainly causes adverse affects in

humans by combining with haemoglobin to

form carboxyhaemoglobin (HbCO) in the blood. This

prevents haemoglobin from carrying oxygen to the tissues,

effectively reducing the oxygen-carrying capacity of the

blood, leading to hypoxia.

29.Which among the following elements increases the

absorption of water and calcium in plants ?

निम्िसिखित में िे कौि िा तत्व पौधों में पािी और कैजल्शयम का अवशोिण बढ़ता है? (a) Manganese/ मैंगिीज

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(b) Boron / बोराि (c) Copper /कॉपर (d) Molybdenum /मॉसिब्डिेम

B

Sol. Boron increases the absorption of water and calcium in

the plants. It helps in the metabolic activities in plants.

Boron is necessary in order for sugar to move through

protoplasmic membranes.

30.The bones are held together by elastic tissues are called-

िोचदार ऊतक द्वारा हड्डडयों को एक िाथ रिे जाि ेको क्या कहते है? (a) Ligaments / स्िायबुांधि (b) Fibrous tissues / रेशदेार ऊतक (c) Fibrin / फाइत्रिि (d) Muscular tissues / माांिपेशी ऊतक

A

Sol. A ligament is a tissue that connects two bones to form

a joint. It is tough and fibrous which means that when it is

formed, a ligament can take quite a while to heal and might

even require surgery.

31.Which of the following are required for the formation of

bones and teeth?

हड्डडयों और दाांतों के गठि के सिए निम्िसिखित में िे क्या आवश्यक है? (a) Sodium and Potassium / िोडडयम और पोटासियम

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(b) Iron and Calcium / िोह और कैजल्शयम (c) Sodium and Calcium / िोडडयम और कैजल्शयम (d) Calcium and Phosphorus / कैजल्शयम और फॉस्फोरि

D

Sol. Teeth and bones both are hard, white and heavy. Teeth

are composed of calcium, phosphorous and other minerals.

Bones contain calcium, phosphorus, sodium and other

minerals, but mostly consist of the protein collagen.

32.Which enzyme can catalyze the conversion of glucose to

ethanol ?

कौि िा एांजाइम ग्िकूोज को इथेिॉि में पररवनतयत कर िकता है? (a) Zymase(जाईमेि) (b) Invertase(इिवरटेज़) (c) Maltase(माल्टेज़) (d) Diastase(डायस्टेज)

A

Sol. Zymase is an enzyme complex that catalyzes the

fermentation of sugar into ethanol and carbon dioxide. It

occurs naturally in yeasts. Zymase activity varies among

yeast strains.

33.Which wood will become useless soon after exposing in

the open air ?

निम्िसिखित में िे कौि िी िकड़ी िुि हवा में प्रकट होिे के तुरांत बाद बेकार हो जाएगी

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(a) Soft wood/ िरम िकड़ी (b) Fibrous wood/ रेशदेार िकड़ी (c) Wet wood / गीि िकड़ी (d) Hard wood/ िख्त िकड़ी

C

Sol. Wood is a porous material and will absorb moisture from

the air. Moisture is attracted to the walls of the tubes that

make up the wood. Wood will only decay if it is in contact

with the ground or wetted by an external source of moisture,

such as rain seepage, plumbing leaks, or condensation. Dry

wood will never decay. Also, the drier the wood, the less

likely it is to be attacked by most types of wood-inhabiting

insects. Wood-inhabiting fungi are small plants that lack

chlorophyll and use wood as their food source.

34.In human beings, normally in which one of the following

parts, does the sperm fertilize the ovum?

मिषु्यों में, आम तौर पर निम्िसिखित में िे ककि िाग में, शकु्राण ुअांडाकार को नििगेचत करता है (a) Cervix / गिायशय ग्रीवा (b) Fallopian tube / फिोवपयि ट्यबू (c) Lower part of uterus / गिायशय का निचिा हहस्िा (d) Upper part of uterus / गिायशय का ऊपर िाग

B

Sol. Fallopian tube, also called oviduct or uterine tube,

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either of a pair of long narrow ducts located in the human

female abdominal cavity that transport the male sperm cells

to the egg, provide a suitable environment for fertilization

and transport the egg from the ovary, where it is produced.

35.The process by which plants produce food is called

प्रकक्रया जजिके द्वारा पौधें िािा बिाते हैं: (a) Carbohydrolysis(काबोहाइड्रोसिसिि) (b) Metabolic synthesis(मेटाबोसिक िांश्िेिण) (c) Carbosensitization(काबोिेंसिज़ेशि) (d) Photosynthesis(प्रकाश िांश्िेिण )

D

Sol. Through the process of photosynthesis, green plants

have a capacity of manufacturing their food

from simple substance as CO₂ and H₂O in presence of light.

36.Our bones and teeth are generally made of —

हमार हड्डडयों और दाांत आम तौर पर ककििे बिते हैं- (a) Tricalcium phosphate / ट्ाइकैजल्शयम फॉस्फेट (b) Fluoropetite /फ्िरुोपेटाईट (c) Chloropetite /क्िोरोपेटाईट (d) Hydrolith /हाइड्रोसिथ

A

Sol. Our bones and teeth are generally made up of

Tricalcium Phosphate. Tricalcium phosphate is a calcium

salt of phosphoric acid with the chemical

formula Ca3(PO4)2. It is also known as tribasic calcium

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phosphate and bone phosphate of lime, BPL. Calcium

phosphate is one of the main combustion products of bone.

The skeletons and teeth of vertebrate animals are composed

of calcium phosphate.

37.The blood pressure in our body is-

मािव शर र में रक्तचाप ककतिा होता है? (a) Lesser than the atmospheric pressure / वायमुांडि य दबाव िे कम (b) Greater than the atmospheric pressure / वायमुांडि य दबाव िे अगधक (c) Equal to the atmospheric pressure / वायमुांडि य दबाव के बराबर (d) None of the above / इिमें िे कोई िह ां

B

Sol. The normal atmospheric pressure is 760 mm of Hg. But

the normal human blood pressure is around 120/80 mmHg

only. Actually when a doctor measure our blood pressure the

measurement is done in respect of atmospheric pressure.

This means that our blood pressure 120mm Hg more than

that of atmospheric pressure of that place. On the other

hand atmospheric pressure is measured with respect of

vacuum, So the actual blood pressure of our body will be 760

+ 120 = 880 mm Hg with respect to vacuum.

38.Hair is composed of protein called –

बाि ककि प्रोट ि िे बिा होता है? (a) Globulin(ग्िोब्यसुिि)

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(b) Mucin(मसुिि) (c) Keratin(कैरेहटि ) (d) Casein(कैसिइि)

C

Sol. Hair is composed of the protein keratin, which is also

that primary component of finger and toe nails.

39. pH value of neutral solution is / उदािीि ववियि का पीएच माि है- (a) 8

(b) 5

(c) 7

(d) 13

C

Sol. The pH of a neutral solution is 7. At this pH, the solution

has equal concentrations of both the H+ and OH- ions, which

is 10-7 mole/litre.

40.Which of the following diseases affects women easily

than that of men ?

निम्िसिखित में िे ककि बीमार िे परुुिों की तुििा में महहिाएां आिािी िे प्रिाववत होती हैं (a) Heart attack / हदि का दौरा (b) Hepatitis / हेपेटाइहटि

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(c) Joint arthritis / जोड़ गहठया (d) Arthritis / गहठया

A

Sol.For women, heart disease symptoms may be subtle – but

when a heart attack strikes, women are more likely to die

than men. Women are also at twice the risk of death

following open heart surgery, compared to men.

Researchers say when men have heart disease it affects the

larger blood vessels, but in women, the small blood vessels

become diseased