Paper 1 - Set A
Paper 1 - Set A
▪ Please read the instructions carefully. You are allotted 5 minutes specifically for
this purpose.
▪ You are not allowed to leave the Examination Hall before the end of the test.
INSTRUCTIONS
Caution: Question Paper CODE as given above MUST be correctly marked in the answer
OMR sheet before attempting the paper. Wrong CODE or no CODE will give wrong results.
A. General Instructions
1. Attempt ALL the questions. Answers have to be marked on the OMR sheets.
2. This question paper contains Three Sections.
3. Section-I is Physics, Section-II is Chemistry and Section-III is Mathematics.
4. All the section can be filled in PART-A & B of OMR.
5. Rough spaces are provided for rough work inside the question paper. No additional sheets will be
provided for rough work.
6. Blank Papers, clip boards, log tables, slide rule, calculator, cellular phones, pagers and electronic
devices, in any form, are not allowed.
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2 Two Year CRP2325_RT_Paper-1_Set-A
S
SEEC
CTTIIO
ONN –– II :: P
PHHY
YSSIIC
CSS
(PART – A)
(One or More Than One Options Correct Type)
This section contains 3 multiple choice questions. Each question has 4 choices (A), (B), (C)
and (D), out of which ONE or MORE THAN ONE is correct.
1. Two waves travelling in opposite directions produce a standing wave. The individual wave
functions are given by y1 = 4 sin(3x – 2t) and y2 = 4 sin(3x + 2t) cm, where x and y are in cm
3
(A) The maximum displacement of the motion at x = cm is 4 cm.
4
(B) The maximum displacement of the motion at t = sec is 4 2 cm .
6
(C) Nodes are formed at x values given by 0, /3, 2/3, , 4/3, ………..
(D) Antinodes are formed at x values given by /6, /2, 5/6, 7/6, ………….
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5. A cylindrical container of radius ‘R’ and height ‘h’ is completely filled with a liquid and is open
to atmosphere at top. Two horizontal L shaped pipes of small cross-section area ‘a’ are
connected to the cylinder as shown in the figure. Now the two pipes are opened and fluid
starts coming out of the pipes horizontally in opposite directions. Then the torque due to
ejected liquid on the system about central axis is:
6. A man standing on a road hold his umbrella at 300 with the vertical to keep the rain away. He
throws the umbrella and starts running at 10 km/hr. He finds that raindrops are hitting his
head vertically, the speed of raindrops with respect to the road will be
(A) 10 km/hr (B) 20 km/hr (C) 30 km/hr (D) 40 km/hr
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8. A musical instrument is made using four different metal strings, 1, 2, 3 and 4 with mass per
unit length , 2, 3 and 4 respectively. The instrument is played by vibrating the strings by
varying the free length in between the range L0 and 2L0. It is found that in string-1.() at free
length L0 and tension T0 the fundamental mode frequency is f0.
List-I gives the above four strings while List-II lists the magnitude of some quantity.
List-I List-II
(P) String-1 () (1) 1
(Q) String-2 (2) (2) 1/ 2
(R) String-3 (3) (3) 1/ 2
(S) String-4 (4) (4) 1/ 3
(5) 3 / 16
If the tension in each string is T0 the correct match for the highest fundamental frequency in
f0 units will be.
(A) P → 1 ; Q → 3 ; R → 4 ; S → 2 (B) P → 2 ; Q → 4 ; R → 3 ; S → 1
(C) P → 1 ; Q → 2 ; R → 5 ; S → 4 (D) P → 2 ; Q → 1 ; R → 3 ; S → 5
Space For Rough Work
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List-I List-II
(P) | W1 | (1) 5gh2 A
8
(Q) | W2 | (2) gh2 A
−
4
(R) | W3 | (3) 3gh2 A
4
(S) W3 (4) gh2 A
4
(5) 3gh2 A
−
4
The correct option is:
(A) P → 1 ; Q → 3 ; R → 5 ; S → 2 (B) P → 1 ; Q → 4 ; R → 3 ; S → 5
(C) P → 1 ; Q → 4 ; R → 3 ; S → 3 (D) P → 2 ; Q → 3 ; R → 1 ; S → 5
Spring 2
A E
List – I List – II
(P) Just after the spring 2 is cut the block D (1) Accelerates up
(Q) Just after the spring 2 is cut the block B (2) Accelerates down
(R) Just after the spring 1 is cut, the block A (3) Momentarily at rest
(S) Just after the spring 1 is cut, the block D (4) Has acceleration g upwards
(5) Has acceleration g downwards
(6) Has acceleration g/2 downwards
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1 m/s
S C
11. Consider the system shown in the figure.
Here the pulleys can move in a vertical A
plane, point A and B are on the rope,
P B
point C is the centre of the indicated 2 m/s
pulley while point D is a point on the rope 1 m/s
R
near the bottom of the middle pulley. The
string are taut D
1 m/s
Q
List – I List – II
(P) 5 m/s (1) Speed of point A must be
(Q) 1.5 m/s (2) Speed of point B must be
(R) 3 m/s (3) Speed of point C must be
(S) 17 m/s (4) Speed of point D must be
(5) Speed of pulley S must be
(A) P → 2, Q → 3, R → 1, S → 4 (B) P → 2, Q → 4, R → 3, S → 1
(C) P → 1, Q → 2, R → 5, S → 4 (D) P → 2, Q → 1, R → 3, S → 5
(PART – B)
(Non – Negative Integer)
1. A large tank is filled with water to a height H. A small hole is made at the base of the tank.
It takes T1 time to decrease the height of water to H/ 9 and it takes T2 time to take out the
rest of water. Find T1 / T2.
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3. A tuning fork of frequency 340 Hz is vibrated just above a cylindrical tube of length 130 cm.
Water is slowly poured in the tube. If the speed of sound is 340 ms–1 then the minimum
height of water required for resonance is (in mm).
4. In a room where temperature is 30oC a body cools from 61oC to 59oC is 4 minutes. Find the
time (in seconds) taken by the body to cool from 51oC to 49oC.
5. A variable force f acts on a body which is free to move. The displacement of the body is
proportional to t3, where t = time. The power delivered by f to the body will be proportional to
tn, find n.
6. 2 kg of ice at –22.50C is mixed with 2.5 kg of water at 250C in an insulating container. If the
specific heat of ice and water are 0.5 cal/gm°C and 1 cal/gm°C respectively. Latent heat of
fusion of ice = 80 cal/gm. Find the final amount of water present in the container (in kg).
Space For Rough Work
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8 Two Year CRP2325_RT_Paper-1_Set-A
S
SEEC
CTTIIO
ONN –– IIII :: C
CHHE
EMMIIS
STTR
RYY
(PART – A)
(One or More Than One Options Correct Type)
This section contains 3 multiple choice questions. Each question has 4 choices (A), (B), (C)
and (D), out of which ONE or MORE THAN ONE is correct.
2. The type of alkyl chlorosilanes which form different silicones upon hydrolysis are given
below:
Type of silicones Formula of alkyl chlorosilanes
Cyclic silicones (R)mSi(Cl)n
Linear silicones (R)pSi(Cl)q
Cross-linked silicones (R)aSi(Cl)b
Linear chain terminator (R)rSi(Cl)s
Choose correct statement(s)
(A) (m + n) = (p + q) = (a + b) = (r + s) (B) a + p = b
(C) r > s (D) r = b
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4. CH3
CH3Cl (Monosubstitution )
⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯
Anhy AlCl
→P + Q
3
KMnO4/OH-
Heat
(R)
Select the correct statement:
(A) P and Q are less reactive than R toward electrophilic aromatic substitution reaction.
(B) R has highest acidic strength than P and Q
(C) oxidation of P and Q forms benzoic acid
(D) dipole moment of P and Q, both are zero
5. Which equilibrium shifts towards forward direction by increasing the concentration of NO 2(g)
at constant volume?
(A) N2 ( g) + O2 ( g) 2NO ( g) (B) 2NO ( g) + O2 ( g) 2NO2 ( g)
(C) NO ( g) + NO2 ( g) N2O3 ( ) (D) N2O5 ( g) NO2+ ( g) + NO3− ( g)
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8. Match the reactants from list-I with the reagent they need to give products by ring formation
mentioned in list-II.
List– I List – II
(P) CH 2CH 2CH 2COCl (1) HF
CH - CH 2 - CH 2 - CH = CH 2
(5) H2O/H+
(A) P → 4; Q → 2; R → 1; S → 3 (B) P → 1; Q → 2; R → 3; S → 4
(C) P → 4; Q → 3; R → 2; S → 1 (D) P → 2; Q → 3; R → 5; S → 4
9. Match the electronic configurations mentioned in List-I with their first ionization energy
mentioned in List-II.
List– I List – II
(Electronic configuration of elements) (First ionization enthalpy in kJ mol–1)
(P) 1s22s2 (1) 801
2 2 4
(Q) 1s 2s 2p (2) 899
(R) 1s22s22p3 (3) 1314
(S) 1s22s22p1 (4) 1402
(5) zero
(A) P → 2; Q → 4; R → 1; S → 3 (B) P → 3; Q → 2; R → 1; S → 4
(C) P → 3; Q → 2; R → 5; S → 1 (D) P → 2; Q → 3; R → 4; S → 1
Space For Rough Work
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10. Match the characteristics of gases as mentioned in list-I with their factors mentioned in list-II.
List– I List – II
(P) Liquification of gases (1) Only temperature
(Q) Root mean square velocity (2) Only molecular mass
(R) Vapour density (3) Temperature, pressure and molecular
mass
(S) Average kinetic energy (4) Temperature and molecular mass
(5) Temperature and pressure
(A) P → 4; Q → 3; R → 1; S → 2 (B) P → 1; Q → 3; R → 4; S → 2
(C) P → 3; Q → 4; R → 2; S → 1 (D) P → 2; Q → 4; R → 2; S → 1
11. Match the salts(consisting of cationic and anionic parts) mentioned in list-I with their
characteristics mentioned in list-II.
List– I List – II
(P) NH NO + − (1) Bond angle of cation is 180o
4 3
(Q) O2+BF4− (2) Both cation and anion are diamagnetic
(R)
(
N2O5 NO2+NO3− ) (3) Cation is paramagnetic and anion is
diamagnetic
(S) Na2C2 (4) Both cation and anion contain
coordinate-covalent bonds according to
valence bond theory
(5) Nitrogen undergoes same hybridization
in cation as well as anion
(A) P → 2; Q → 4; R → 3; S → 1 (B) P → 4; Q → 3; R → 1; S → 2
(C) P → 2; Q → 3; R → 5; S → 4 (D) P → 1; Q → 2; R → 5; S → 4
Space For Rough Work
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12 Two Year CRP2325_RT_Paper-1_Set-A
(PART – B)
(Non – Negative Integer)
1. Consider the reaction, N2O4 ( g) 2NO2 ( g) . The temperature at which Kc = 20.4 and
Kp = 600.1 is x Kelvin. What is the value of x (Round off to nearest integer) [Assume all
gases are ideal and R = 0.0831 L bar K–1 mol–1]
-1
in B(g)
0.06 m
k1 =
2. A(g) k2 =
0.00
93 m
in -1
C(g)
In above reaction, the half-life period of A(g) in minute unit is
4. How many maximum number of mono enol(s) including stereoisomer(s) is/are possible for
O CH3 O
CH 3 - C - CH 2 - CH - CH 2 - C - CH 2 - CH 3
6.
, , , , , ,
N
How many antiaromatic compounds are there in above list?
Space For Rough Work
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13 Two Year CRP2325_RT_Paper-1_Set-A
S
SEEC
CTTIIO
ONN –– IIIIII :: M
MAAT
THHE
EMMA
ATTIIC
CSS
(PART – A)
(One or More Than One Options Correct Type)
This section contains 3 multiple choice questions. Each question has 4 choices (A), (B), (C)
and (D), out of which ONE or MORE THAN ONE is correct.
A circle S passes through the point (0, 1) and is orthogonal to the circles ( x − 1) + y 2 = 16
2
1.
and x2 + y2 = 1 Then
(A) radius of S is 8 (B) radius of S is 7
(C) centre of S is (–7, 1) (D) centre of S is (–8, 1)
(1 + x )
n
2. If Cr’s denotes the combinatorial coefficients in the expansion of ,n N then
C + 3C + 5C ………….upto (n+1) terms, is equal to
2
0
2
1
2
2
(B) ( 2n + 1)
2n −1
(A) 2n
Cn + 2n.2n−1Cn−1 Cn
(C) 2 ( n + 1) Cn + (n + 1) .2n−1Cn−1
2n −1 2n−1
Cn−1 (D)
3. Let z, z and z + z represent three vertices of ABC where is non real cube root of
– 1, then:
2 2
(A) centroid of ABC is ( z + z ) (B) orthocenter of ABC is ( z + z )
3 3
2 2
(C) circumcenter of ABC is ( z + z ) (D) incentre of ABC is ( z + z )
3 3
4. If a variable circle of radius 4 cuts the circle x2 + y2 = 1 orthogonally then locus of its
centre will be
(A) x2 + y2 = 16 (B) x2 + y2 =17
2 2
(C) x + y - 2x - 4y = 1 (D) 2x - 4y + 5 = 0
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(A) 2
p2 + q2
(B)
(p2 + q2 ) sin
p cos + q2 sin (p cos + q sin )
2
(C)
(p 2
)
+ q2 sin
(D)
p2 + q2 cos
pcos + qsin pcos + qsin
x2 y2
8. Let H : − = 1, where a b 0 , be a hyperbola in the xy – plane whose conjugate axis
a2 b2
LM subtends an angle of 60o at one of its vertices. N. Let the area of the triangle LMN be
4 3.
LIST - I LIST – II
(P) The length of the conjugate axis of H is (1) 8
(Q) The eccentricity of H is (2) 4
3
(R) The distance between the foci of H is (3) 2
3
(S) The length of the latus rectum of H is (4) 4
(5) 3
The correct option is
(A) P → 4; Q → 2; R → 1; S → 3 (B) P → 4; Q → 3; R → 1; S → 2
(C) P → 4; Q → 1; R → 3; S → 2 (D) P → 3; Q → 4; R → 2; S → 5
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9. Consider two circles C1 of radius a and C2 of radius b (b > a) both lying in the first quadrant
b
and touching the coordinate axes. In each of conditions listed in list– I, the ratio of is given
a
in list II
List – I List – II
(P) C1 and C2 touch each other. (1) 2+ 2
(Q) C1 and C2 are orthogonal (2) 3
(R) C1 and C2 intersect so that common chord is longest (3) 2+ 3
(S) C1 passes through center of C2 (4) 3+2 2
(5) 3−2 2
The correct option is
(A) P → 4; Q → 3; R → 1; S → 5 (B) P → 3; Q → 4; R → 1; S → 2
(C) P → 4; Q → 3; R → 2; S → 1 (D) P → 3; Q → 4; R → 2; S → 1
10.
List - I List – II
(P) The tangents drawn to the ellipse 3x2 + y2 = 3 , which (1) 4
are equally inclined to the coordinate axes, form a
quadrilateral of area equal to
(Q) The radius of the circle passing through both the focus (2) 2
x2 y2
of the ellipse + = 1 and having its centre at (0, 3)
16 9
is
(R) The number of integral points (both x and y integer) on (3) 8
x2
the ellipse + y 2 = 1 is
3
(S) The sum of all real x satisfying x2 + x − 1 = 1 (4) 1
(5) 5
(A) P → 3, Q →5, R →2, S →4 (B) P → 3, Q →1, R →2, S →4
(C) P → 2, Q →3, R →4, S →5 (D) P → 3, Q →2, R →1, S →4
11.
List – I List – II
(P) Let f ( x ) is a quadratic function such that f ( 6 ) = f ( 7 ) (1) 4
f ( 4 ) − f (1)
and = f ( 5 ) , then the value of f ( 8 ) is
f (3) − f ( 2)
(Q) The equation ax2 + bx + a = 0 (a 0 ) a,b R and (2) 3
x3 − 2x 2 + 2x − 1 = 0 have two roots common, then the
value of a + b is
(R) x2 y2 (3) 2
Least distance between − = −1 and 3x − 4y = 0 is
4 3
5d
d then is
3
(S) Let a,b R . If the equation x 4 − 4x3 + ax 2 + bx + 1 = 0 (4) 0
has four positive roots, then a + b is
(5) 1
(A) P → 2, Q →4, R →3, S →5 (B) P → 2, Q →4, R →3, S →3
(C) P → 2, Q →4, R →5, S →3 (D) P → 1, Q →2, R →4, S →3
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16 Two Year CRP2325_RT_Paper-1_Set-A
(PART – B)
(Non – Negative Integer)
1. Suppose that all the terms of an arithmetic progression (A.P.) are natural numbers. If the
ratio of the sum of the first seven terms to the sum of the first eleven terms is 6 : 11 and the
seventh term lies in between 130 and 140, then the common difference of this A.P. is
3 5 7
3. + 2 + 2 + ...... to is
1 1 + 2 1 + 22 + 32
2 2
x2 y2
4. If a tangent of slope 2 of the ellipse + = 1( a b 0 ) is a normal to the circle
a2 b2
x2 + y2 + 4x + 1 = 0, then the maximum value of ab is
2
z + z3 − 2z1
5. If z1,z2,z3 are the vertices of an equilateral triangle, then 2 is
z 2 − z3
1/3
6. If z1 = 2, z2 = 3, z3 = 4 and 2z1 + 3z2 + 4z3 = 9, then value of 8z2 z3 + 27z3 z1 + 64z1z2
is
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17 Two Year CRP2325_RT_Paper-1_Set-A
Chemistry
PART – A
1. ABC 2. ABCD 3. BC 4. B
5. C 6. C 7. D 8. C
9. D 10. C 11. B
PART – B
1. 354 2. 10 3. 15 4. 14
5. 9 6. 3
Mathematics
PART – A
1. BC 2. AC 3. ABCD 4. B
5. A 6. C 7. C 8. B
9. C 10. B 11. B
PART – B
1. 9 2. 2 3. 6 4. 4
5. 3 6. 6
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