NEET 2013

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For the following questions answer them individually
NEET 2013 - Question 1

The eye of octopus and eye of cat show different patterns of structure, yet they perform similar function. This is an example of:

NEET 2013 - Question 2

Select the correct statement with respect to locomotion in humans:

NEET 2013 - Question 3

A phosphoglycerideis always madeupof:

NEET 2013 - Question 4

Perisperm differs from endosperm in :

NEET 2013 - Question 5

A sedentary sea anemonegets attachedto the shell lining of hermit crab. The associationis :

NEET 2013 - Question 6

The cell - mediated immunity inside the human body is carried out by :

NEET 2013 - Question 7

Which of the following are likely to be present in deep sea water?

NEET 2013 - Question 8

one of the representatives of phylum Arthopoda is:

NEET 2013 - Question 11

Figure shows human urinary system with structures labelled A to D. Select option which correctly identifies them and gives their characteristics and or functions.

NEET 2013 - Question 12

In china rose the flowers are :

NEET 2013 - Question 13

The Golgi complex plays a major role:

NEET 2013 - Question 14

what external changes are visible after the last moult of a cockroach nymph

NEET 2013 - Question 15

Isogamous condition with non-flagellated gametes is found in:

NEET 2013 - Question 16

Transition state structure of the substrate formed during enzymatic reaction is :

NEET 2013 - Question 17

Select the answer which correctly matches the endocrine gland with the hormone it secretes and itsΒ function/deficiency symptom :

NEET 2013 - Question 18

The colonies of recombinant bacteria appear white in contrast to blue colonies of non recombinant bacteria because of

NEET 2013 - Question 19

Monoecious plant of Chara shows occurrence of:

NEET 2013 - Question 20

Advantage of cleistogamy is:

NEET 2013 - Question 21

The H-zone in the skeletal muscle fibre is due to:

NEET 2013 - Question 22

Artificial insemination means:

NEET 2013 - Question 23

Which group of animals belong to the same phylum?

NEET 2013 - Question 25

If two persons with β€˜AB’ blood group marry and have sufficiently large number of children, these children could be classified as β€˜A’ blood group:β€˜AB’ blood group :’B’ blood group in1:2:1 ratio. Modern technique of protein electrophoresis reveals presenceof both β€˜A’ and β€˜B’ type proteins in β€˜AB’ blood groupindividuals. This is an exampleof:

NEET 2013 - Question 26

Which of the following cannot be detected in a developing foetus by amniocentesis?

NEET 2013 - Question 27

The first stable product of fixation of atmospheric nitrogen in leguminous plants is :

NEET 2013 - Question 28

A biologist studied the population of rats in a barn .He found that the average natality was 250, average mortality 240,immigration 20 and emigration 30.The net increase in population is

NEET 2013 - Question 29

Secondary productivity is rate of formation of new organic matter by :

NEET 2013 - Question 30

Infection of Ascaris usually occurs by :

NEET 2013 - Question 31

Figure shows schematic plan of blood circulation in humans with labels A to D. Identify the label and give its function/s,

NEET 2013 - Question 32

The tendency of population to remain in genetic equilibrium maybedisturbed by :

NEET 2013 - Question 33

A diagram showing axon terminal and synapseis given. Identify correctly at least two of A-D.

NEET 2013 - Question 34

A good producer of citric acid is:

NEET 2013 - Question 35

Age ofatreecan be estimatedby:

NEET 2013 - Question 36

The process by which organisms with different evolutionary history evolve similar phenotypic adaptions in response to a common environmental challenge is called:

NEET 2013 - Question 37

A stage in cell division is shown in figure.Select the answer which gives correct identification of the stage with its charecteristics

NEET 2013 - Question 38

The figure shows a diagrammatic view of human respiratory system with labels A, B,C and D. Select the option which gives correct identification and main function and/or characteristic.

NEET 2013 - Question 39

Interfascicular cambium develops from thecells of :

NEET 2013 - Question 40

During seed germinationits stored food is mobilized by:

NEET 2013 - Question 42

According to Darwin,the organic evolution is due to:

NEET 2013 - Question 43

Whichof the following criteria does not pertain to facilitated transport ?

NEET 2013 - Question 45

Natural reservoir of Phosphorus is

NEET 2013 - Question 46

Which of the metabolites is common to respiration-mediated breakdown fats, crabohydrates and proteins

NEET 2013 - Question 47

Which of the following process during decomposition is correctly described?

NEET 2013 - Question 48

If both parents are carriers for thalessemia, whichis an autosomal recessive disorder, what are the chances of pregnancy resulting in an affected child ?

NEET 2013 - Question 49

Whichofthe following statements is not true of two genes that show50% recombination frequency ?

NEET 2013 - Question 50

One of the legal methods of birth control is :

NEET 2013 - Question 51

Besides paddy fields, cyanobacteria are also found inside vegetative part of :

NEET 2013 - Question 52

Which ofthe following are correctly matched with respect to their taxonomic classification ?

NEET 2013 - Question 53

Variation in gene frequencies within populations can occur by chance rather than by naturalselection. This is referred to as:

NEET 2013 - Question 54

Select the correct match of the digested products in humans given in column I with their absorption site and mechanism in column II.

NEET 2013 - Question 55

Select the wrong statement

NEET 2013 - Question 56

Which Mendelian idea is depicted by a cross in which the $$F_{1}$$ generation resembles both the parents

NEET 2013 - Question 57

The diagram given here is the standard ECG of a normal Person> The P-wave represents the :

NEET 2013 - Question 58

Which enzyme will be produced in a cell in which there is non sense mutation in the lac Y gene?

NEET 2013 - Question 59

The most abundant intracellar cation is:

NEET 2013 - Question 60

Which oneof the following is not the function of placenta ? It:

NEET 2013 - Question 61

Inplant breeding programmes, the entire collection (of plants/seeds) havingall the diversealleles for all genes ina given cropis called :

NEET 2013 - Question 62

Which one of the following is not a correct statement?

NEET 2013 - Question 63

Which one of the following organelle in the figure correctly matches with its function ?

NEET 2013 - Question 64

Which of the following represent maximum number of species among global biodiversity ?

NEET 2013 - Question 65

Which of the following Bt crops is being grown in India by the farmers

NEET 2013 - Question 66

Read the following statements (A-E) and answerthe question which follows them.
(A) In liverworts, mosses, and ferns gametophytes are free - living
(B) Gymnosperms and some ferns are heterosporous
(C) Sexual reproduction in Fucus, Volvox and Albugo is oogamous
(D) The sporophytein liverwortsis more elaborate than that in mosses
(E) Both,Pinus and Marchantia are dioecious

NEET 2013 - Question 67

The essentail chemical components of many co-enzymes are :

NEET 2013 - Question 68

Parts A,B,C and D of the human eye are shown in the diagram .select the option which gives correct identification along with its functions/ charecteristics:

NEET 2013 - Question 69

The three boxes in this diagram represent the three major biosynthetic path ways in aerobic respiration. Arrows represent net reactants or products.


Arrows numbered 4, 8 and 12 can all be ;

NEET 2013 - Question 70

Pigment-containing membranousextensions in some cyanobacteriaare:

NEET 2013 - Question 71

Which one of the following statements is correct ?

NEET 2013 - Question 72

The characteristics and an example of a synovial joint in humans is :

NEET 2013 - Question 73

The Air Prevention and Control of Pollution Act came in to force in:

NEET 2013 - Question 74

Product of sexual reproduction generally penerates :

NEET 2013 - Question 75

Amongbitter gourd, mustard, brinjal, pumpkin, china rose, lupin, cucumber, sunnhemp, gram, guava, bean, chilli, plum, petunia, tomato, rose, withania, potato, onion, aloe and tulip how many plants have hypogynous flower

NEET 2013 - Question 76

A pregnant female delivers a baby who suffers from stunted growth,mental retardation, low intelligence quotient and abnormal skin.This is the result of:

NEET 2013 - Question 77

Which of the following is not correctly matched for the organism and its cell wall degrading enzyme?

NEET 2013 - Question 78

Mentrual flow occurs due to lack of:

NEET 2013 - Question 79

Global warming can be controlled by:

NEET 2013 - Question 80

Which one of the following is not used for ex situ plant conservation?

NEET 2013 - Question 81

During sewage treatment, biogases are produced which include:

NEET 2013 - Question 82

The diagram shows an important concept in the genetic implication of DNA. Fill in the blanks A to C.

NEET 2013 - Question 83

DNA fragments generated by the restriction endonucleases in a chemical reaction can be
separated by :

NEET 2013 - Question 84

The complex formed by a pair of synapsed homologous chromosomes is called

NEET 2013 - Question 85

The incorrect statement with regard to Haemophilia is:

NEET 2013 - Question 86

Which of the following statements is correct in relation to the endocrine system ?

NEET 2013 - Question 87

Lenticels are involved in

NEET 2013 - Question 88

Match the names of the animal (column I),with one charecteristics (column II), and the phylum /class (colum III) to which it belongs:

NEET 2013 - Question 89

What is the correct sequence of sperm formation?

NEET 2013 - Question 90

Macro molecule chitin is :

NEET 2013 - Question 91

In Young’s double slit experiment, the slits are 2mm apart and are illuminated by photons of two wavelengths $$\lambda_{1}$$ =12000 A and $$\lambda_{2}$$=10000 A. At what minimum distance from the common central bright fringe on the screen 2 m from the slit will a bright fringe from oneinterference pattern coincide with a bright fringe from the other?

NEET 2013 - Question 92

In acommonemitter (CE) amplifier having a voltage gain G, the transistor used has transconductance 0.03 mho and current gain 25. If the abovetransistor is replaced with another one with transconductance 0.02 mho and current gain 20, the voltage gain will be:

NEET 2013 - Question 93

A certain mass of Hydrogen is changed to Helium by the process of fusion. The Mass defect in fusion reactionis 0.02866 u. The energy liberated per u is :
(given 1 u=931 MeV)

NEET 2013 - Question 94

In the given (V-T) diagram, what is the relation between pressures $$P_{1} and P_{2}$$?

NEET 2013 - Question 95

The output (X) of the logic circuit shown in figure will be :

NEET 2013 - Question 96

Three blocks with masses m, 2 m and 3 m are connected by strings, as shown in the figure. After an upward force F is applied on block m1, the masses move upward at constant speed v. What is the net force on the block of mass 2 m? (g is the acceleration due to gravity)

NEET 2013 - Question 97

In a n-type semiconductor ,Which of the following statements is true?

NEET 2013 - Question 98

The half life of a radioactive isotope 'X' is 20 years .It decades to another element 'Y' is 20 years . It decays to another element 'Y' which is stable . The two elements 'X' and 'Y' were found to be in the ratio 1:7 in a sample of a given rock.The age of the rock is estimated to be:

NEET 2013 - Question 99

The molar specific heats of an ideal gas at constant pressure and volume are denoted by $$C_{P}$$ and $$C_{V}$$, respectively.Β 

If $$\gamma = \frac{C_{p}}{C_{v}}$$ and R is the universal gas constant , then $$C_{v}$$ is equal to:

NEET 2013 - Question 100

The wavelength $$\lambda_{c}$$,of an electron and $$\lambda_{p}$$ of a photon of same energy E are related by :

NEET 2013 - Question 101

Ratio of longest wave lengths corresponding to Lymanand Balmerseries in hydrogen spectrum is :

NEET 2013 - Question 102

A current loop in a magnetic field :

NEET 2013 - Question 103

A, Band C are three points in a uniform electric field. The electric potential is :

NEET 2013 - Question 104

A rod PQ of mass M and length L is hinged at end P. The rod is kept horizontal by a mass less string tied to point Q as shown in figure. When string is cut, the initial angular acceleration of the rod is :

NEET 2013 - Question 105

A wire of resistance 4 2 is stretched to twice its original length. The resistance of stretched wire would be:

NEET 2013 - Question 106

The velocity of a projectile at the intial point A is $$(2 \hat{i}+3\hat{j})$$ $$\frac{m}{s}$$.Its velocity (in $$\frac{m}{s}$$) at the point B is.

NEET 2013 - Question 107

A body of mass m is taken from the earth surface to the height equal to twice the radius (R) of the earth .The change in potential energy of the body will be

NEET 2013 - Question 108

A stone falls freely under gravity.It covers distances $$h_{1},h_{2},h_{3}$$ in the first five seconds ,the next five seconds and the next 5 seconds respectively .The relation between $$h_{1},h_{2}$$ and $$h_{3}$$ is:

NEET 2013 - Question 109

A bar magnet of length β€˜l’ and magnetic dipole moment ’M’ is bent in the form of an arc as shown in figure. The new magnetic dipole moment will be :

NEET 2013 - Question 110

The internal resistance of a 2.1 V cell which gives a current of 0.2 A through a resistance of 10 Ξ© is:

NEET 2013 - Question 111

For photoelectric emission from certain metal the cutoff frequencyis v. If radiation of frequency 2 v impinges on the metalplate, the maximum possible velocity of the emitted electron will be (m is the electron mass) :

NEET 2013 - Question 112

During an adiabatic process, the pressure of a gasis found to be proportional to the cube of its temperature.The ratio of $$\frac{C_{p}}{C_{v}}$$.The ratio of $$\frac{C_{p}}{C_{v}}$$ of the gas is

NEET 2013 - Question 113

The following four wires are made of the same material. Which of these will have the largest extension when the sametension is applied ?

NEET 2013 - Question 114

The resistances of the four arms P,Q, R and S in a Wheatstone’s bridge are 10 ohm, 30 ohm, 30 ohm and 90 ohm,respectively. The e.m.f. and internal resistance of the cell are 7 Volt and 5 ohm respectively. If the galvanometerresistance is 50 ohm, the current drawnfromthecell will be :

NEET 2013 - Question 115

The amount of heat energy required to raise the temperature of 1 g of Helium at NTP, from $$T_{1} K$$ to $$T_{2} K$$ is:

NEET 2013 - Question 116

A piece of iron is heated in a flame.It first becomes dull red then becomes redissh yellow and finally turns to white hot.The correct explanation for the above observation is possible by using :

NEET 2013 - Question 117

A gas is taken through the cycle $$A \rightarrow B \rightarrow C \rightarrow A$$ as shown. What is the net work done by the gas ?

NEET 2013 - Question 118

The condition under which a microwave oven heats up a food item containing water molecules most efficiently is :

NEET 2013 - Question 119

An explosion breaks a rock into three parts in a horizontal plane. Twoof themgooff at right angles to each other. Thefirst part of mass 1 kg moves with a speed of 12 $$ms^{-1}$$ and the secondpart of mass 2 kgmoves with 8 $$ms^{-1}$$ speed. If the thirdpart flies off with 4 $$ms^{-1}$$ speed, then its mass is :

NEET 2013 - Question 120

In an experiment four quantities a, b, c and d are measured with percentage error 1%, 2%,3% and 4% respectively. Quantity P is calculated as follows;
$$P=\frac{a^{3}b^{2}}{cd}$$ % error in P is:

NEET 2013 - Question 121

A small object of uniform density rolls up a curved surface with aninitial velocity β€˜v’. It reaches up to a maximum height of $$\frac{3 \nu^{2}}{4g}$$ with respect to the initial position .The object is:

NEET 2013 - Question 122

A plano convexlensfits exactly into a plan Β» concave lens. Their plane surfaces are parallel to each other. If lenses are madeofdifferent materials of refractive indices j1, and po and R is the radius of curvature of the curved surface of the lenses, then the focal length of the combination is:

NEET 2013 - Question 123

A parallel beam of fast movingelectrons is incident normally on a narrow slit. A fluorescent screen is placed at a large distance from theslit. If the speed of the electronsis increased, which of the following statements is correct ?

NEET 2013 - Question 124

For a normal eye,the cornea of eye provides converging power of 40 D and the least converging power of eye lens behind the cornea is 20D.using the information , the distance between the retina and cornea-eye lens can be estimated to be:

NEET 2013 - Question 125

The upper half of a inclined plane of inclination $$\theta$$ is perfectly smooth while lower half is rough .A blocl starting from the rest top of the plane will gain come to rest at the bottom ,if the coefficients of the friction betwwen the block and lower half of the plane is given by:

NEET 2013 - Question 126

A wave travelling in the +ve direction having displacements along y direction as 1m,wavelength $$2 \pi m$$ and frequency of $$\frac{1}{\pi}$$ Hz is reperesented by:

NEET 2013 - Question 127

A source of unknown frequency gives 4 $$\frac{beats}{s}$$,when sounded with a source of known frequency 250 Hz. The second harmonic of the source of unknown frequency gives five beats per second, when sounded with a source of frequency 513 Hz. The unknown frequencyis:

NEET 2013 - Question 128

A coil of self-inductance L is connected in series with a bulb B and an AC source. Brightness of the bulb decreases when:

NEET 2013 - Question 129

Two pith balls carrying equal charges are suspended from a common point by strings of equal length, the equilibrium separation between them is r. Now the strings are rigidly clamped at half the height. The equilibrium separation between the balls now become:

NEET 2013 - Question 130

If we study the vibration ofa pipe openatboth ends, then the following statement is not true:

NEET 2013 - Question 131

When a proton is released from rest in a room,it starts with an initial acceleration $$a_{o}$$ towards west. When it is projected towards north with a speed $$\nu_{0}$$Β it moves with an initial acceleration $$3a_{0}$$ toward west. The electric and magnetic fields in the room are:

NEET 2013 - Question 132

A wire loop is rotated in a magnetic field. The frequency of change of direction of the induced e.m-f. is :

NEET 2013 - Question 133

A uniform force of $$(3\hat{i}+\hat{j})$$ newtonacts on a particle of mass 2 kg. Hence theparticle is displaced from position $$(2\hat{i}+\hat{k})$$ meter to position: $$(4\hat{i}+3\hat{j}-\hat{k})$$ meter, The work done by the force on the particle is :

NEET 2013 - Question 134

The wettability of a surface by a liquid depends primarly on:

NEET 2013 - Question 135

Infinite number of bodies , each of mass 2 kg are situated on x-axis at distances 1m,2m,4m,8m,..... respectively form the origin. The resulting gravitational potentail due to this system at the origin will be:

NEET 2013 - Question 136

The value of Planck's constant is $$6.63 \times 10^{-34}$$ Js .The speed of the light is $$43 \times 10^{17} nm s^{-1}$$. Which value is closest to the wavelength in nanometer of a quantum light with frequency of $$6 \times 10^{15}s s^{-1}$$?

NEET 2013 - Question 137

The radical,

is aromatic because it has:

NEET 2013 - Question 138

Which of the following is electron-deficient ?

NEET 2013 - Question 139

Which of the following statements about the interstitial compoundsis incorrect ?

NEET 2013 - Question 140

How many grams of concentrated nitric acid solution should be used to prepare 250mL of 2.0M $$HNO_{3}$$? The concentrated acid is 70% $$HNO_{3}$$

NEET 2013 - Question 141

Which of the following lanthanoid ions is diamagnetic ?
(At nos. Ce = 58, Sm = 62, Eu = 63, Yb = 70)

NEET 2013 - Question 142

Which oneof the following molecules contains no $$\pi$$ bond ?

NEET 2013 - Question 143

Based on equation E=$$-2.178 \times 10^{-18} J \left(\frac{Z^{2}}{N^{2}}\right)$$ certain conclusions are written. Which of them is not correct ?

NEET 2013 - Question 144

In the reaction

A is:

NEET 2013 - Question 145

The order of the stability of the following tautomeric compounds is

NEET 2013 - Question 147

$$XeF_{2}$$ is iso-structural with:

NEET 2013 - Question 148

The basic structural unit of silicates is :

NEET 2013 - Question 149

Which of the following structure is similar to graphite ?

NEET 2013 - Question 150

The structure of isobutyl group in an organic compound is:

NEET 2013 - Question 152

An excess of $$AgNO_{3}$$ is added to 100 mL of a 0.01M solution of dichlorotetraaquachromium(II]) chloride. The number of moles of AgCl precipitated would be:

NEET 2013 - Question 153

Whatis the maximum numbers of electrons that can be associated with the following set of quantum numbers?
n=3,l=1and m=-1.

NEET 2013 - Question 154

Whichof these is nota monomerfor a high molecular mass silicone polymer?

NEET 2013 - Question 155

A reaction having equal energies of activation for forward andreverse reactionshas:

NEET 2013 - Question 156

At $$25^\circ$$C molar conductance of 0.1 molar aqueous solution of ammonium hydroxide is $$9.54 ohm^{-1} cm^{2} mol^{-1}$$ and at infinite dilution its molar conductance is 238 $$ohm^{-1} cm^{2} mol^{-1}$$. The degree of ionisation of ammonium hydroxide at the same concentration and temperature is:

NEET 2013 - Question 157

Structure of the compound whose IUPAC name is 3-Ethyl-2hydroxy-methylhex-3-en-5-ynoic acid is :

NEET 2013 - Question 158

Among the following ethers which one will produce methyl alcohol on treatment with hot concentrated HI?

NEET 2013 - Question 159

Antiseptics and disinfectants either kill or prevent growth of microrganisms. Identify which of the following statementsis nottrue :

NEET 2013 - Question 160

A magnetic moment of 1.73 BM will be shown by one among the following:

NEET 2013 - Question 161

$$KMnO_{4}$$ can be prepared from $$K_{2}MnO_{4}$$ as per the reaction $$3MnO_{4}^{2-} + 2H_{2}O \rightleftharpoons 2MnO_{4}^{-} + MnO_{2} + 4OH^{-}$$ The reaction can go to completion by removing $${OH}^{-}$$ ions by adding :

NEET 2013 - Question 163

Which of the following does not give oxygen on heating ?

NEET 2013 - Question 164

A metal has a fcc lattice. The edge length of the unit cell is 404 pm. The density of the metal is 2.72 gΒ $$cm^{-3}$$. The molar mass of the metal is :Β ($$N_{A}$$ Avagadro's constant = $$6.02 \times 10^{23} mol^{-1}$$)

NEET 2013 - Question 165

Dipole - induced dipole interactions are present in which of the following pairs :

NEET 2013 - Question 166

Roasting of sulphides gives the gas X as a by-product. This is a colorless gas with choking smell of burnt sulphur and causes great damage to respiratory organs as a result of acid rain. Its aqueoussolutionis acidic, acts as a reducing agent and its acid has never been isolated. The gas X is:

NEET 2013 - Question 167

Some meat- directing substutients in aromatic substitution are given .Which one is most deactivating?

NEET 2013 - Question 168

Nitrobenzene on reaction with $$\frac{conc.HNO_{3}}{H_{2}SO_{4}}$$ at 80 $$-100^\circ$$C forms which one of the following products?

NEET 2013 - Question 169

A hydrogen gas electrode is made by dipping platinum wire in a solution of HCI of pH = 10 and by passing hydrogen gas around the platinum wire at one atm pressure. The oxidation potential of electrode would be ?

NEET 2013 - Question 170

Which of the following is a polar molecule ?

NEET 2013 - Question 171

A button cell used in watches functions as following $$Zn(s)+Ag_{2}O(S)+H_{2}O(l) \rightleftharpoons 2Ag(s)+{Zn}^{2+} (aq)+2{OH}^{-}(aq)$$
If half cell potentials areΒ $${Zn}^{2+}(aq)+2e^{-}\rightarrow Zn(s);E^\circ = -0.76V$$
$$Ag_{2}O(s)+H_{2}O(1) + 2e^{-}\rightarrow 2Ag(s)+2OH^{-} (aq), E^\circ =-0.34V$$
The cell potential will be:

NEET 2013 - Question 172

Which of these is least likely to act as a Lewis base ?

NEET 2013 - Question 173

Which of the following compounds will not undergo Friedal - Craft's reaction easily :

NEET 2013 - Question 174

Whichis the monomerof Neoprenein the following?

NEET 2013 - Question 175

$$6.02 \times 10^{20}$$ molecules of urea are present in 100 nb. otits solution. The concentration of solution Is;

NEET 2013 - Question 176

Maximum deviation from ideal gas is expected from:

NEET 2013 - Question 177

Which of the following is paramagnetic ?

NEET 2013 - Question 178

Identify correct order of solubilty in aqueous medium

NEET 2013 - Question 179

What is the activation energy for a reaction if its rate doubles when the temperature is raised from $$2O^\circ$$C to $$35^\circ$$C $$(R=8.314 J mol^{-1}K^{-1})$$

NEET 2013 - Question 180

Which is the strongest acid in the following?

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