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  #1  
Old May 14th, 2014, 01:56 PM
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Default Previous year question papers of IIT JEE MCA entrance exam

Will you please give me the previous year question papers of IIT JEE MCA entrance exam as it is very urgent for me?

The IIT JEE is entrance test for admissions to the engineering courses across the country. Here I am, provide you the JEE Pattern. This will helps you in the preparation of your exam. this is as follows;

JEE Pattern

For Paper 1(B.E/B.Tech courses), it is in both off and online modes.

For Paper 2(B.Arch/B.Planning),it is in offline mode only.

Paper 1 - for B.E/B.TECH courses

Duration: 3 hrs

Objective type questions with equal weightage to Physics, Chemistry & Mathematics

Four options with single correct answer

Negative marking - for each incorrect response, one fourth (1/4) of the total marks allotted to the question would be deducted.No response will mean no deduction of marks

Paper 2 - for B.ARCH/B. PLANNING

Mathematics - Part I - objective questions
Aptitude Test - Part II - objective questions
Drawing Test - Part III - to test drawing aptitude

Duration - 3 Hours

You are searching for the IIT JEE previous years papers. Here I am uploading a file that contains the IIT JEE previous year’s papers. You can download this from here. This is as follows:

IIT JEE previous years papers







Attached Files Available for Download
File Type: pdf IIT JEE previous years papers.pdf (344.4 KB, 23 views)

Last edited by Aakashd; February 21st, 2020 at 10:50 AM.
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  #2  
Old May 15th, 2014, 04:08 PM
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Join Date: Dec 2011
Default Re: Previous year question papers of IIT JEE MCA entrance exam

As you want to get the previous year question papers of IIT JEE MCA entrance exam so here is the information of the same for you:
Q.1
Q2
Q3
Q4
Q.5
QB
or:
From among the following structures, the most acidic molecule is
(A) cna-cnz-coon (B) HQC=CHCOOH
(o) HCEC—COOH (D) CHa—CH2-CH2—OOH
Which of the following compounds, upon mass spectral analysis, give a base peak at
m/z 119?
(A) P, Q and R (B) P and Q (C) Q and R (D) P and R
The order of melting point of LiF, LiCl, LiBr and Lil is
(A) LiF == LiCl < LiBr > LiI (B) LiF < LiCl < LiBr < LiI
(C) LiF > LiCl == LiBr < LiI (D) LiF > LiCl > LiBr > LiI
Jahn-Teller distortion is a common phenomenon for octahedral complexes with
(A) a high spin (15 configuration (B) a d9 configuration
(C) a low spin cl6 configuration (D) a d3 configuration
The spin only magnetic moment of [COPE]? is
(A) 0.0 BM (B) 1.73 BM (C) 2.40 BM (D) 4.90 BM
XeF; is isoelectronic and isostructural with
(A) PF5 (B) IF5 (C) PtF5 (D) ClFr,
Despite a large difference in their atomic number, Zr(40) and Hf(72) have comparable
atomic radii. This is because
(A) both elements are in the same period of the periodic table
(B) of the lanthanide contraction
(C) of the actinide contraction
(D) of the presence of half-filled f-orbitals in Hf
BT- 1120Page 3

Q.8
Q.10
Q.11
Q.12
Q.13
Q.14
D
Let x and y be two numbers such that 0 < x < 1 and 0 < y < 1. Then the sum of the infinite
series Jc(x+y)+ac2 (x2+y2) +x3(x3+y3) + .... ..+x" (1“ +y")+... is
2 2
(A) xz-i (B) y2+xy
l-x l—xy I—y 1—431
2 2
x 13' .7 33"
C + _
Let 2 = 2 + iJg represent the vertex of a square inscribed in the circle Iz-II = 2. Then
One of the adjacent vertices of the square is
(A) J5-1+i (B) 1-J5+i (0) 1+J§+i (D) 145-;-
The area of the triangle formed by the lines joining the vertex of the parabola x2 = 8 y to
the ends of the latus rectum is
(A) 3 (B) 4 (C) 16 (D) 2
The co~ordinates of a point, where the line y = x +J§ touches the circle x2+ y2 = 1, are
1 1
s [_. __) a» [_
J5 J5.
Let y(x) be the solution of the differential equation x 5% = x + y, ace (0, 00) satisfying
(A) (B)
the initial condition y (1) = 0. Then, as x —> 0,
(A) y(JIr)—>m (B) y(x)—>1
(C) yon->0 (D) y(x) does not havealimit
The problem of minimizing the function 2.1: + 3y subject to the constraints 2: + y = 5, x S 2,
J64, x20 and y20 has
(A) multiple solutions (B)
(C) no solution
an optimal solution
(D) an unbounded solution
The co-ordinates of the point, where the line joining the points A= (1,2, 3) and
B = (2, 3, 4) crosses the Jay-plane, are
BT-Z! 20Page 4

Q.15
Q.16
Q.18
Q.19
Q.20
Electron affinity of nitrogen is
(A) higher than that of phosphorus (B)
(C) comparable to that of phosphorous (D)
lower than that of phosphorus
identical to that of phosphorus
(A) a polyamide, a polyolefin, a polyester and a polycarbonate respectively
(B) a polyester, a polyolefin, a polyamide and a polycarbonate respectively
(C) a polyamide, a polyolefin, a polycarbonate and a polyester respectively
(D) a polyamide, a polyolefm, a polyester and a polyester respectively
Plasmid A and plasmid B were digested with BamHI and analyzed by agarose gel
electrophoresis. If Plasmid A gave two fragments and plasmid B gave three fragments,
then which of the following inferences are CORRECT?
P. Plasmid A has three sites and is circular
Q. Plasmid B has three sites and is circular
R. Plasmid A has two sites and is linear
S. Plasmid B has two sites and is linear
(A) P and Q (B) Q and R (C) P and S (D) R and S
Cholera toxin manifests its action by
P. the ADP-ribolysation of Gi protein
Q. the transfer of ADP-ribose from NAD+ to the G, protein
R. the inhibition of phosphodiesterase
S. the activation of adenylate cyclase
(A) P and R (B) P and S (C) Q and S (D) Q and R
When cultured in vitro with a suitable combination of growth regulators, plant
parenchyma and collenchyma cells become meristematic. This phenomenon is called
(A) differentiation (B) maturation
(C) apoptosis (D) dedifferentiation
Which one of the following statements about sieve tube elements in plants is NOT
CORRECT?
(A) They are supported by companion cells
(B) They must die to become functional
(C) They link end to end forming sieve tubes
(D) They translocate organic nutrients
BT-31'20Page 5

Q.21
Q22
Q23
Q24
Q25
Q26
Q27
cot A+cot B+cot C .
IfA+B+c=£, th
2 en cot A cot B cot C
(A) —1 (B) 1 (C) 0 (D) 2
If a two digit number k is 4 times the sum of its digits and 2 times the product of its
digits, then the number is
(A) 36 (B) 48 (C) 20 (D) 45
Two bicycles start off to a slow race with initial velocities 4 mls and 2 m/s and uniform
accelerations 1 mls2 and 2 mfs2, respectively. If both of them cover the same distance in
the same time, then the distance covered is
(A) 12 m (B)
16m
(C) 24m (D) 36m
If the curve y= 5x3+ bx2 +cx+ 5 touches the x-axis at the point (1, 0), then the
pair (b, c) is
(A) (5, 5) (B) (—5. 5) (C) (5, —5) (D) (—5,—5)
; . _
The value of dx is
oI+s1nx cosx
(A) 1 (B) 0 (C) —-1 (D) 2
2
If 0 < y < 1, then the coefficient of y" in the ex ansion of 1—+‘)-’ is
p
1*3’
(A) 4n (B) 1 (C) n— 1 (D) 2n
If OSxSJr/2,then the value of tan'1[ 1—8?!li is
1+s1nx
Jr—x It ' 1r 7! x
A B -—— —— D ———
( ) 2 ( ) 4 x (C) 2 x ( ) 4 2
BT-4l20Page 6

Q30
Q31
Q32
Q33
Q.34
Which one of the following is NOT part of a molluscan body plan?
(A) Mantle (B) Radula (C) Visceral mass
(D) Trachea
A clade is
(A) a type of phylogenetic tree
(B) a group of evolutionarily related species sharing a common ancestor
(C) an extinct species
(D) a tool for constructing a phylogenetic tree
Kupffer cells are found in
(A) stomach (B)
(C) small intestine (D)
liver
large intestine
Ecological succession refers to
(A) changes in community composition after a disturbance
(B) the process by which a species become abundant
(C) the building of soil nutrients
(D) changes in a forest as trees grow taller
During fertilization, the movement of the pollen tube towards the ovule is guided by a
protein released from
(A) Egg (B)
(C) Antipoda] cell (D)
Synergid
Polar nuclei
Choose the correct matches.
Disease Glands I organs
P. Mumps 1. Pancreas
Q. Colitis 2. Stomach
R. Hepatitis 3. Salivary gland
S. Gastritis 4. Large intestine
5. Liver
(A) P-4, Q-l, R~2, 8-5 (B) P-3, Q-4, R-5, 5-1
(G) P-3, Q-4, R-5, S-Z (D) P-2, Q-3, 11-1, 8-5
The correct sequence for sperm migration after its production in testis is
(A) Seminiferous tubule —» epididymis —+ vas deferens -—> urethra
(B) Urethra —* vas deferens—+ epididymis -» seminiferous tubule
(C) Epididymis —-> vas deferens —' urethra —» seminiferous tubule
(D) Seminiferous tubule —+ vas deferens —+ epididyinis —, urethra
BT-5I20Page 7

st
st
Q37
Q38
Q39
Q40
Statement 1 : Isotopes are chemically identical
Statement 2 : Chemical reactions do not depend on the number of neutrons in the atom
Which of the following is CORRECT?
(A) Statements 1 and 2 are correct and 2 is the correct explanation for 1
(B) Statements 1 and 2 are correct, but 2 is not the correct explanation for 1
(C) Statement 1 is correct, but statement 2 is wrong
(D) Statement 1 is wrong, but statement 2 is correct
The wavelength of electromagnetic radiation emitted by the hydrogen atom in the first
excited state is given as it . The wavelength corresponding to the transition from the third
excited state to the ground state is
2
4
(A) 5/1 _
3 27
(B) 2/1 (C) 5/1 (D) 511
N0 atoms of a certain radioactive element undergo radioactive decay. After 100 days the
number is reduced to The mean life of the element, in days, is
100
ln(2)
(A) 1001n(2) (B) (C) 200 (D) 100
A point particle of mass M moving with a constant speed u collides with another point
particle of mass 2M, which is at rest. After the collision, if the second particle moves with
a non-zero speed, the speed of the first particle is
2a
(B) —— (D) —2-
u
(A) g 3
(C) 0
Two satellites of masses M and 2M are orbiting around the earth in circular orbits of
radii R and 21?, respectively. The ratio of their speeds is
(A) 245:1 (B) J51 (C) 1:4 (D) 2:1
A particle is projected vertically upwards from the surface of earth with an initial speed
of 40 rats. The acceleration of the particle when it reaches the maximum height is
(A) 20 m/s2 (B) 4.9 m/s‘! (C) 9.8 m/s" (D) 0
BT-GIZOPage 8

Q41
Q42
Q43
Q44
Q45
Q46
Q.47
D
The phenomenon of expression of only one allele of an immunoglobulin gene in
lymphocytes is known as
(A) allelic exclusion
(C) allelic variation
(B) allelic inclusion
(D) allelic heterogeneity
The antibody class that can pass from the mother to the fetus in humans is
(A) IgA (B) IgD (C) 186' (D) 13M
Which of the following statements is NOT CORRECT about MHC class 11 proteins?
(A) They are recognized by CD4 co-receptors
(B) They are composed of (I and B chains
(C) They are involved in presenting antigen to helper T cells
(D) They are present in the T cell cytoplasm
Bilirubin is formed due to the degradation of
(A) erythrocytes (B) leucocytes (C) hepatocytes (D) macrophages
Match the diseases in Group I with the corresponding hormones in Group II.
Group I Group II
P. Myxoedema 1. Excess secretion of T3 and T,
Q. Cushing's syndrome 2. Insufficient secretion of T3 and T4 in adults
R. Acromegaly 3. Growth hormone hypersecretion before complete ossification
S. Graves' disease 4. Glucocorticoid hypersecretion
5. Growth hormone hypersecretion after complete ossification
(A) P-3. Q-2, R-l, 8-5 (B) P-5, Q-3, 11-2, 8-4
(C) P-2, Q-4, R-5, 8-} (D) P-3, Q-l, R-4, 8-2
The function of a heterocyst in aerobic Cyanobacterium app. is to facilitate
(A) rapid cell division (B)
(C) nitrogen fixation (D)
DNA replication
infection of host plants
The number of distinct disaccharides that can be formed from two molecules of glucose is
(A) 11 (B) 6 (C) 5 (D) 1
Which of the following covalent bond types are found in the structure of ATP?
(A) N-glycoside, thioester, phosphomonoester
(B) phosphoanhydride, phosphomonoester, N-glycoside
(C) ester, ether, phosphoanhydride
(D) ether, thioester, phosphomonoester
BT-7/20Page 9

Q49
Q50
Q.51
Q52
Q53
Q54
Q.55
D
Let i" = be the force acting at the point P = (1, 0, 0), where and are the unit
vectors along the x-axis and y-axis, respectively. Then the moment of F' about the line
through origin in the direction of is
1 1
A B _ C -1 (l) 0
( ) {—2 ( ) r2 ( ) )
Let “1) = 11?ng {J's—t, x2, x3} and on be the area bounded by the curve y = f (x), the x-axis
and the ordinates at x = O and x = 4. Then the value of at is
(A) 16/3 (B) 64/3 (C) 59/12 (D) 64
An urn contains 3 red, 5 black and 7 yellow balls. If a ball is drawn at random, then the
probability that the ball drawn is not yellow is
(A) 7115 (B) 8/15 (0) 7/8 (D) 1/7
Let A be a non-singular square matrix of order 3. If B is the matrix obtained from A by
adding 3-multiple of its first row to its second row, then the value of det(2A'lB) is
(A) 8 (B) 3 (C) 6 (D) 2
The pressure difference between the inside and the outside of a liquid drop is
(A) linearly proportional to the radius of the drop
(B) inversely proportional to the radius of the drop
(C) proportional to the square of the radius of the drop
(D) zero
In a Young's double slit experiment using light of wavelength it, the interference pattern
of fringe width 2.5 mm is observed. If the same set up is used with a light of wavelength
2%., the fringe width would be
(A) 1.25 mm (B) 2.5mm (C) 5mm (D) 10 mm
A ray of light traveling through a medium of refractive index J5 is incident on an
interface with another medium of refractive index 1, at an angle of incidence of 30°.
Which of the following statements is CORRECT?
(A) The ray undergoes total internal reflection
(B) The ray is fully transmitted
(C) The ray just grazes the interface
(D) The ray is partly reflected and partly transmitted
BT~8120Page 10

Q.56
Q57
st
Q59
Q.60
Q.61
D
Choose the correct set of matches between the function and the corresponding cellular
structure.
Function Structure
P. Protein synthesis 1. Lysosomes
Q. Intracellular digestion 2. Ribosomes
R. Protein secretion 3. Microtubules
S. Macromolecular traffic 4. Mitochondria
5. Golgi apparatus
(A) P-l, Q-2, R~5, 8-3 (B) P-2, Q-l, R-4, S-5
(C) P~3, Q-5, R-l, S-4 (D) P-2, Q-I, R-5, S-3
2, 4-Dinitrophenol inhibits mitochondrial function by
(A) inhibiting ATP synthesis (B) inhibiting electron flow
(C) dissipating the electrochemical gradient (D) decreasing oxygen permeability
The premature termination of polypeptide synthesis due to a stop codon can be overcome
by a compensatory mutation in tRNA. This genetic phenomenon is referred to as
(A) intragenic suppression (B)
(C) codon bias (D)
extragenic suppression
true reversion
Myoglobin shows a hyperbolic response, while hemoglobin shows a sigmoidal response for
oxygen binding. Which of the following statements are TRUE with respect to this
observation?
P. Hemoglobin binds 2, 3-BPG while Myoglobin does not
Q. Hemoglobin exists in two different conformational states while Myoglobin does not
R. Hemoglobin is a tetrarner while Myoglobin is a monomer
S. Hemoglobin is present in RBCs while Myoglobin is present in the muscle
(A) R and S (B) S and P (C) P and Q (D) Q and R
An increase in enzyme activity in a cell is mechanistically due to transcription. This
mechanism can be demonstrated by
(A) measuring total enzyme activity in the cell free extract
(B) ELISA
(C) Northern blot
(D) Western blot
Galactosemia is a recessive single gene genetic disorder, caused due to the mutation in
any one of the three genes involved in galactose catabolism. A family consists of
10 normal children with both parents suffering from galactosemia. This is most likely
because of
(A) epistasis (B)
(C) suppression (D)
reversion
complementationPage 11

Q.62
st
Q.64
Q.65
Q.66
If R is the resistance and C is the capacitance in an electric circuit, the dimensions of RC
are the same as that of
(A) Current (B)
Voltage (C) Charge (D) Time
One mole of an ideal mono-atomic gas of initial volume V0 is compressed adiabatically to
V . . . . .
a volume —2—°. If the initial temperature is To, then the final temperature is
[.67
(A) 110(1)
2 711(2)“? (D)
0.67
(B) TOE] (0) Tour“
The internal energy of 3 moles of an ideal mono-atomic gas at absolute temperature T is
given by
9 3
—- k T C — RT D
2 s ( ) 2 ( )
9
(A) ERT (B) 2kB’I‘
A real gas behaves as an ideal gas at
constant pressure
high pressure
(A) constant volume (B)
(C) low density (D)
Treating the diol shown below with strong acid gives compound E.
' 0
m 0
Compound E displays a prominent absorption band at 1710 cm“! in its IR spectrum. The
most likely structure of E is
o - ' ~ \
0 .
0 °
0
EST-10120Page 12

Q.67
Q.68
Q.69
Q70
Q.71
Q.72
Q73
Okazaki fragments are formed during DNA synthesis, because
P. DNA synthesis extends from 5' to 3’ direction
Q. their synthesis are opposite to the direction of replication fork
R. DNA ahead of replication fork is positively supercoiled
S. DNA synthesis is semi-conservative
(A) Q and R (B) P and Q (C) (D) S and P
Which of the following elements must be present in a plasmid cloning vector?
P. Origin of replication
Q. Selectable marker
R. Unique restriction sites
S. Promoter element upstream of the unique restriction site
(A) S and P (B) Q and R (C) R and S (D) P and Q
The metabolite pair that is NOT formed directly from pyruvate is
(A) Oxaloacetate and acetaldehyde
(C) Acetyl CoA and alanine
(B) Alanine and ethanol
(D) Lactate and oxaloacetate
Which of the following pairs of protocols is used before ligating two DNA molecules with
incompatible 5’ overhangs?
P. Filling in with a Klenow fragment
Q. 81 nuclease digestion
R. Dephosphorylation of 5’ phosphate
S. Phosphorylation of 3' hydroxyl group
(A) PandQ (B) QandR (o)
Alanine (C) Serine (D) Methionine
A mutation in the operator, which prevents the binding of the repressor resulting in the
constitutive expression of the lac operon, is referred to as
(A) semi-dominant (B) trans-dominant (C) co-dominant (D) eta-dominant
Two double stranded DNA samples that are identical with respect to the number of base
pairs, but differ significantly in their GC content, can be separated by
(A) Density gradient centrifugation (B) Agarose gel electrophoresis
(C) Dialysis (D) Oligo-dT column chromatography
BT-l 1120Page 13

Q.67
Q.68
Q.69
Q70
Q71
Q72
Q73
Okazaki fragments are formed during DNA synthesis, because
P. DNA synthesis extends from 5' to 3' direction
Q. their synthesis are opposite to the direction of replication fork
R. DNA ahead of replication fork is positively supercoiled
S. DNA synthesis is semi-conservative
(A) Q and R (B) P and Q (C) R and S (D) S and P
Which of the following elements must be present in a plasmid cloning vector?
P. Origin of replication
Q. Selectable marker
R. Unique restriction sites
S. Promoter element upstream of the unique restriction site
(A) S and P (B) Q and R (C) R and S (D) P and Q
The metabolite pair that is NOT formed directly from pyruvate is
(A) Oxaloacetate and acetaldehyde
(C) Acetyl CoA and alanine
(B) Alanine and ethanol
(D) Lactate and oxaloacetate
Which of the following pairs of protocols is used before ligating two DNA molecules with
incompatible 5' overhangs?
P. Filling in with a Klenow fragment
Q. SI nuclease digestion
R. Dephosphorylation of 5' phosphate
S. Phosphorylation of 3' hydroxyl group
(A) P and Q (B) Q and R (C) R and S (D) S and P
Which of the following amino acids is a major precursor of one-carbon units?
(A) Proline (B) Alanine (C) Serine (D) Methionine
A mutation in the operator, which prevents the binding of the repressor resulting in the
constitutive expression of the lac operon, is referred to as
(A) semi~dominant (B) trans-dominant (C) co-dominant (D) oils-dominant
Two double stranded DNA samples that are identical with respect to the number of base
pairs, but differ significantly in their GC content, can be separated by
(A) Density gradient centrifugation
(C) Dialysis
(B) Agarose gel electrophoresis
(D) Oligo-dT column chromatography
BT-l 1/20Page 14

Q.74
Q75
Q76
Q17
D
Match the test from Column 1 with the sample pairs in Column 2 so that posg'tige
identification is possible.
Column 1 Column 2
(J) Flame test (1) CH3—CO—Cl-l3 and CHB—CO-C6H5
(K) Tollen’s reagent test (2) H—CO-H and CHE—CO—Czl-lfi
(L) Water solubility test (3) Glucose and Starch
(M) Iodoform test (4) CHa-CO—CBHE, and C6H5—CO—CBH5
(5) NaCl and NaI
(6) CH3NH—CO-NI-ICH3 and Cl-IS-CO—NI-I2
(A) J-4, K-3, L-2 and M-1 (B) J—4, K4, L-5 and M—1
(C) J-1, K-2, L3 and M-4 (D) J-3, K-5, L-6 and M4
Under neutral conditions, O-glycosides, unlike the free sugars from which they are
derived, do not exhibit mutarotation. This is because
(A) the anomeric hydroxyl group exists as an acetal
(B) the anomeric carbon atom exists in the open chain form
(C) the anomeric carbon atom exists as a hemi-acetal
(D) O-glycosides exist as a racemic mixture and hence mutarotation cannot be observed
The reaction CaC03(s) = CaO(s) + 002(g) is not favored at 298 K. Given that for this
reaction at 298 K, ArHo = 200 lerol'1 and 13,50 = 200 JK“mol“, the lgweat temperature
at which this reaction will proceed in the forward direction is
(A) 801K (B) 901K (C) 1001K (D) 1101K
The graphs P, Q and R show the variation of rate constant (k) with temperature. The
reactions represented by P, Q and R, respectively, are
P Q R
k k
T T T
(A) P - Arrhenius type, Q - an enzyme catalysed and R - a chain reaction
(B) P - an enzyme catalysed, Q - Arrhenius type and R - a chain reaction
(C) P - Arrhenius type, Q - a chain reaction and R - an enzyme catalysed reaction
(D) P - a chain reaction, Q - an enzyme catalysed and R - Arrhenius type reaction
BIT-12120Page 15

Q78
Q.79
Q.80
Q.81
Q.82
Q.83
Q.84
D
Which of the following pairs of amino acids have two chiral carbons in their structure?
(A) Thr and He (B) 'hrr and Trp (C) His and Met (D) Leu and Gly
Base pairing between inosine and uridine occurs through
(A) Hoogsteen base pairing (B)
(C) Wobble base pairing
Watson-Crick base pairing
(D) Purine-purine base pairing
The net charge on a protein will be negative when the pH is
(A) at its isoelectric pH (B) above its isoelectric pH
(C) below its isoelectric pH (D) at neutral pH
The molecule that functions as a natural thio] reductant in a cell is
(A) Glutathione (B) Methionine (C) Dithiothreitol (D) Cystine
The two pathways required for the net synthesis of glucose from triglycerides in
germinating groundnut seeds are
(A) Hexose monophosphate shunt and Gluconeogenesis
(B) Calvin cycle and Glyoxalate cycle
(C) Glycolysis and Cori cycle
(D) Glyoxalate cycle and Gluconeogenesis
Match the antibiotic with its inhibitory mode of action.
Antibiotic Mode of action
P. Penicillin 1. Protein synthesis
Q. Rifamycin 2. Protein glycosylation
R. Tunicamycin 3. RNA polymerase
S. Sulfanilamide 4. Folate biosynthesis
5. Peptidoglycan synthesis
(A) P—5, Q-3, R-l, 8-2 (B) P-3, Q-4, R-2, S-1
(C) P-2, Q-l, R-3, S-4 (D) P-5, Q-3, R-2, S-4
Which of the following statements are TRUE for a mutation that changes the codon from
UAC to UAG?
P. It is a nonsense mutation Q. It is a missense mutation
R. It is a point mutation S. It is a transversion
(A) P, Q, R (B) P. Q. 5 (C) P, R, S (D) Q, R- SPage 16

Q.85
Q.86
Q67
The product M obtained in the substitution reaction shown below is
2_
Cl
C] /Pt + 2 NHa ___> M
C]
/01 NH3
(A) HSN Pt NH3 (B) H3N /Pt Cl
Cl/ Cl
NHa NH3
(C) (D)
Pt Pt
\
HaN/ \bm HaN/ NENHa
The order of X—N—X bond angle in NHa, NE; and N013 is
(A) NH3 < NC13< NF3 (B) NCL;> NH3> NFS
(C) was > N013 > NF3 (0) NC]? NF3> NH3
The deep pink color of aqueous KMUO-l solution is due to
(A)
(B)
(C)
(D)
a very strong d - d transition
a very week of - d transition
a strong ligand to metal charge transfer interaction
a strong metal to ligand charge transfer interactionPage 17

st
Q.ss
Q.90
Q.91
Q.92
D
The concept of “Spontaneous generation of life" was disproved by experiments using
swan neck flasks. This experiment was conducted by '
(A) Koch (B) Pasteur (C) Schwann (D) Lister
Consider the following three groups and choose the correct match.
Vitamin Cofactor Enzyme
P1. Riboflavin Q1. 'I‘PP R1. Pyruvate carboxylase
P2. Thiamine Q2. CoA R2. Succinate dehydrogenase
P3. Nicotinamide Q3. Biocytin R3. Glucose 6‘phosphate dehydrogenase
P4. Pantothenate Q4. NADP R4. Pyruvate decarboxylase
P5. Cobalamine Q5. FAD R5. Succinate thiokinase
P6. Biotin R6. Hexokinase
(A) P1-Q5-R2, P2-Q1-R4, Ps-Q4-R3. P4-Q2-R5, P6-Q3-R1
(B) Pi-Qs-Rz, P4-Q1-R6, P3-Q4-R3, P4-Q2-R5, P6-Q3-R1
(C) P1-Q5-R2, P2-Q1-R4, P1-Q4-Re, P4-Q2-R5, P6-Q3-R1
(D) P1-Q5-R2, P2-Q1-R4, P3-Q4-R3, P5-Q2-R6, P6-Q3-R1
For a reversible reaction S 3:2 P, the equilibrium concentration of P is 100 times that
of S. The equilibrium constant for this reaction in the presence of an enzyme catalyst will
be
(A) 0.01 (B) 1 (C) 100 (1)) 1000
Which of the following statements are TRUE with respect to membrane fluidity of a
phospholipid bilayer?
P. Increasing proportion of long chain fatty acids decreases membrane fluidity
Q. Increase in cholesterol content increases membrane fluidity
R. Increasing proportion of cis unsaturated fatty acids increases membrane fluidity
S. Increasing proportion of trans unsaturated fatty acids increases membrane fluidity
(A) P and Q (B) P and R (C) R and S (D) Q and S
Choose the correct set of words denoted by (E). (Q) and (B) for the following statement.
Pheophytin is a (2) molecule in which the central atom _(Q_) has been replaced by two
atoms of LR).
(A) P - plastocyanin, Q - copper. R - hydrogen
(B) P - plastocyanin, Q - zinc, R - oxygen
(C) P - chlorophyll, Q - magnesium, R - oxygen
(D) P - chlorophyll. Q - magnesium. R - hydrogen
BT~ 1 5/20Page 18

Q.93
Q.94
Q.95
Q36
Q.97
@
A wheel of radius R rolls on a horizontal surface without slipping. If the centre of mass
moves with a speed 1), the instantaneous speed at the highest point on the wheel is
(A) 12/2 (B) 0 (C) v (D) 20
A quantity Z =XY is to be estimated by measuring X and Y. If the absolute errors in the
measurement of X and Yare AX and AY, respectively, then the absolute error in Z is
(A) AZ=YAX+XAY (B) AZ=AXAY
_ _ AX. All
(C) AZ-AX+AY (D) AZ-[ X ]+[ y]
Which of the following is NOT CORRECT for electromagnetic waves propagating in
vacuum?
(A) Electromagnetic waves with different wavelengths travel with the same speed
(B) The electric and the magnetic fields are perpendicular to each other and
perpendicular to the direction of propagation
(C) The magnetic field is along the direction of propagation
(D) Electromagnetic waves carry energy
A charged particle, with an initial velocity in the xy plane, is subjected to a uniform
magnetic field along the z-axis. Which of the following is the CORRECT statement?
(A) The particle will experience a force along the z-axis
(B) The speed of the particle remains constant
(C) Acceleration of the particle is zero
(D) The particle moves in a helical path
A uniform electric field Eoi , where i is the unit vector along the x-axis, exists in a region.
A cube of side ‘a’ is kept with one of its corners coinciding with the origin and three edges
along the x, y, z axes. Which one of the following is the CORRECT statement?
(A) The total charge inside the cube is non zero
(B) The flux of electric field through each face is zero
(C) The flux of electric field through all the faces are equal, but non zero
(D) The net flux of electric field through all the faces is zero
BT-16120Page 19

D
Q.98 The greater efficiency of detergents over soaps as cleaning agents in aqueous media is
best described by
P Q R s
SOD-P
80!?
o- n” o- DETERGENT “ o-
msnonn‘ 3°"
macaw mm
7 Concentration Concentration Concentration Concentration
[where u is the surface tension of water )
(A) graph 5 (B) graph R (C) graph Q (D) graph P
Q.99 The pairs of structures P, Q and R are shown as Fischer projections. P, Q and R,
respectively, represent
0H CH3 OH 0H, 0H 0H
Hac__H H"_"—°H Hac—w—H H—-—OH Hac——H H————CH3
HBC__°H Hac—_°H H30———0H Ho——cn3 H,c———0H H——0H
H H
P H Q H H R CH3
(A) the same molecules, diastereomers and enantiomers
(B) the same molecules, enantiomers and diastereomers
(C) the same molecules, the same molecules and enantiomers
(D) enantiomers, diastereomers and enantiomers
Q.100 The product obtained by the nitration, at log temperature, of meta xylene is
(A) U (B)
N02
N02
0mm“
(D) D
NO:
((3)
BT- 1 7/ 20
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