SAMPLE PAPER +1 Moving to +2 (Medical)

Transcription

SAMPLE PAPER
+1 Moving to +2 (Medical)
INSTRUCTIONS :
1.
This paper contains 45 questions divided in 3 Sections. 3 marks will be awarded for correct answer
and –1 for wrong answer.
Section A : Physics (Q.1 to 15)
Section B : Chemistry (Q. 16 to 30)
Section C : Biology (Q. 31 to 45)
2.
Sample paper is designed in a way to give a fair idea to a student about the pattern of paper and the type
of questions which will be asked in the actual test.
3.
Number of questions, total marks, difficulty level of questions and time allotted for the paper might vary
in the actual test.
4.
Child may use this sample paper as a practice paper to get accustomed to the pattern of actual test.
SECTION – A
PHYSICS
1.
2.
A 6000 kg rocket is set for vertical
firing. If the exhaust speed is
1000 ms–1, the gas ejected per second to
supply the thrust needed to overcome
the weight of the rocket is [Take g = 10
ms–2]
(a) 6 kgs–1
(b) 60 kgs–1
(c) 600 kgs–1
(d) 6000 kgs–1
7
5
(b)
4
(c)
3
5
7
(b)
(c)
11.3
MR 2
12
(d) MR2
11
MR 2
12
The orbital time-period of a satellite very
(a)
p RE
4 g
(c) p
5.
RE
g
(b)
p RE
2 g
(d) 2p
RE
g
The density of the atmosphere at sea
level is 1.3 kg/m3. Assume it does not
3
(d)
4
From a complete ring of mass M and
radius R, a 30º sector is removed. The
moment of inertia of the incomplete
ring about an axis passing through the
centre of the ring and perpendicular to
the plane of the ring is
9
MR 2
12
close to the surface of the earth is
A bullet moving with a velocity of 800
ms–1 passes through two plates of widths
d1 and d2. In passing through each of
them, it loses a velocity of 200 ms–1. If
both the plates offer same resistance
to the motion of bullet, then the ratio
d1/d2 is
(a)
3.
4.
(a)
change with altitude and g = 10 ms–2,
how high would the atmosphere extend?
6.
(a) 8 km
(b) 10 km
(c) 12 km
(d) 16 km
In a room where the temperature is
30ºC, a body cools from 61ºC to 59ºC in
4 minutes. The time (in minutes) taken
by the body to cool from 51ºC to 49ºC
30º
TM
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7.
Two bars of equal length and the same
cross-sectional area but of different
thermal conductivities K1 and K2 are
joined end to end as shown in Figure.
One end of the composite bar is
maintained at temperature Th whereas
the opposite end is held at Tc (Th > Tc).
10.
A fixed mass of ideal gas undergoes
changes of pressure and volume
starting at L, as shown in figure.
If there are no heat losses from the
sides of the bars, the temperature Tj of
the junction is given by
Th
Tj
Tc
K1
K2
l
l
Which graph shows how temperature
(measured in Kelvin) changes with
volume ?
K 2 (Th + Tc )
(a) K
2
1
K2
(b) K + K (Th + Tc )
1
2
(c)
K1 + K 2 (Th + Tc )
2
2
(a)
1
(d) K + K (K1Th + K 2 Tc )
1
2
8.
9.
The rectangular surface of area 8 cm ×
4 cm of a black body at temperature
127ºC emits energy E per second. If
length and breadth are reduced to half
of the initial value and the temperature
is raised to 327ºC, the rate of emission
of energy becomes
(a)
3
E
8
(b)
81
E
16
(c)
9
E
16
(d)
81
E
64
The molecules of a given mass of gas
have a root mean square velocity of 200
m s –1 at 27ºC and 1.0 × 10 5 Nm –2
pressure. When the temperature is
127ºC and the pressure 0.5 × 105 N m–2,
the root mean square velocity in m s–1,
is
(a)
(c)
400
3
100 2
3
(b) 100 2
(d)
(b)
(c)
(d)
100
3
TM
11.
Which of the following graphs best
13.
Two identical springs of spring constant
represents the relationship between
k are attached to a block of mass m and
absolute temperature of a gas and the
to fixed supports as shown.
average kinetic energy of the gas
When the mass is displaced from its
molecules ?
equilibrium position, it executes SHM.
Its time period is
KE
KE
(a)
(b)
k
T
T
KE
KE
(c)
(a) 2p
m
2k
(b) 2p
m
k
(c) 2p
3m
k
(d) 2p
3m
2k
(d)
T
12.
k
m
T
Which of the following graphs correctly
represents
the
variation
14.
A whistle string of frequency 1000 Hz is
sounded on a car travelling towards a
of
cliff with velocity of 18m s–1 normal to
b = – (dV/dP)/V with P for an ideal gas
the cliff. If c = 330 ms–1, then the aparent
at constant temperature ?
frequency of the echo as heard by the
car driver is nearly
b
b
(a)
(b)
P
P
15.
(a) 1115 Hz
(b) 115 Hz
(c) 67 Hz
(d) 47.2 Hz
The radius of gyration of a circular plate
of radius R, about an axis perpendicular
to its plane and bisecting a radius is
b
b
(c)
(a) R
(d)
P
TM
P
(c)
(b)
3R
2
(d)
R
2
5R
2
SECTION–B
CHEMISTRY
16.
One commercial system removes SO2
emission from smoke at 95ºC by
following set of reactions :
20.
At
moderate
gas is given by :
SO2Cl2 + H2O ® H2SO4 + HCl
Z = 1 + 0.34p –
H2SO4 + Ca(OH)2 ® CaSO4 + H2O
kelvin)
Assuming the process to be 95%
efficient, how many grams of CaSO4
may be produced from 100 g of SO2 ?
18.
What is the Boyle’s temperature of this
gas ?
(b) 83 g
(a) 298 K
(b) 340 K
(c) 202 g
(d) 252 g
(c) 470 K
(d) 680 K
49
r
(a)
10x
49x
(b)
10r
10x
r
(c)
49
10r
(d)
49x
21.
The first I.E. of Na, Mg, Al and Si are in
the order :
(a) Na < Mg < Al < Si
(b) Na < Al < Mg < Si
(c) Na < Al < Si < Mg
(d) Na > Mg > Al > Si
22.
When iodine is dissolved in aqueous
potassium iodide, the shape of the
Consider the following reaction :
species formed is :
Cl- (aq) + CrO24- (aq) + H2O(l) ¾¾®
(a) linear
(b) angular
(c) triangular
(d) see-saw
Cl2(g) + Cr(OH)3 (s) + OH–(aq)
If chloride (Cl–) is being consumed at
0.276 mol L–1 s–1, how fast is hydroxide
(OH–) produced ?
23.
(b) 0.046 mol L–1 s–1
hybridisation of the central atom ?
24.
(c) 0.092 mol L–1 s–1
(a) sp2
(b) sp3
(c) sp3d
(d) sp3d2
Under what conditions will a reaction
that isn’t spontaneous at room
(d) 0.465 mol L–1 s–1
temperature become spontaneous as
Gases tend to show marked deviation
from real gas behaviour at
(a) high temperature and high pressure
(b) low temperature and low pressure
(c) high temperature and low pressure
(d) low temperature and high pressure
A hypothetical AB4 molecule has two
lone pairs of electrons on A. What is the
(a) 0.166 mol L–1 s–1
19.
160p
(p in bar and T in
T
(a) 49 g
A solution of sulphuric acid has density
r g/mL and it is x % H2SO4 by weight.
The normality of this solution is
the
compressibility factor for a particular
SO2 (g) + Cl2 (g) ® SO2Cl2 (g)
17.
pressures,
the temperature increases ?
(a) DHº = + and DSº = +
(b) DHº = + and DSº = –
(c) DHº = – and DSº = +
(d) DHº = – and DSº = –
TM
25.
Given the following reactions with their
respective DHºRXN ,
(c) ln K
Reaction I : C(s) + 2H2 (g) ® CH4 (g)
(d) ln K
DHºRXN = –74.9 kJ
DHºRXN = –139 kJ
28.
For the equilibrium
SrCl2.6H2O(s) ƒ SrCl2.2H2O(s) + 4H2O(g) ;
the equilibrium constant Kp = 16 ×10–12
atm4 at 1ºC. If one litre of air saturated
with water vapour at 1ºC is exposed to
a large quantity of SrCl2.2H2O(s), what
weight of water vapour will be absorbed?
Saturated vapour pressure of water at
1ºC = 7.6 torr.
1
1
Reaction III : H2 (g) + Cl2 (g) ® HCl(g)
2
2
DHºRXN = –92.3 kJ
Calculate the DHºRXN for the following
reaction :
CH4 (g) + 4Cl2 (g) ¾¾® CCl4 (l) + 4HCl(g)
26.
(a) 433.3 kJ
(b) –433.3 kJ
(c) 217.5 kJ
(d) –217.5 kJ
Heat absorbed by a system in going
through a cyclic process shown in figure
is :
29.
H
V (in L)
30
P (in KPa)
27.
(b) 106 p J
(c) 102 p J
(d) 104 p J
Which ln K vs 1/T plot is correct for an
equilibrium that shifts toward reactants
at higher temperatures ?
(b) ln K
(a) ln K
(b) 3.25 g
(c) 2.3 mg
(d) 6.4 mg
Given the bond enthalpies N = N
(711 kJ/mol) and N – N (163 kJ/mol)
N
N
H
H
N
N
H
H
N
B
N
H
C
Molecule A has the above configuration.
To make it have the configuration of
molecule C, the p bond in molecule A
must be broken thereby forming
molecule B where rotation around the
N to N single bond occurs. The p bond
then reforms giving you molecule C.
What is the wavelength of light, l (in
nm), required to initiate this process ?
10
(a) 107 p J
(a) 6 mg
A
30
10
1/T
1/T
Reaction II : C(s) + 2Cl2 ® CCl4 (l)
30.
(a) 218 nm
(b) 310 nm
(c) 425 nm
(d) 612 nm
A beam of specific kind of particles of
velocity 2.1 × 107 m/s is scattered by a
gold (Z = 79) nuclei. Find out specific
charge (charge/mass) of this particle if
the distance of closest approach is
2.5 × 10–14 m.
(a) 4.84 × 107 C/kg (b) 4.84 × 10–7 C/kg
1/T
TM
1/T
(c) 2.42 × 107 C/kg (d) 3 × 10–12 C/kg
SECTION–C
BIOLOGY
31.
The sites of protein synthesis with in
36.
the cytoplasm of the cell are the :
32.
(a) cork layer and phellogen
(a) vacuoles
(b) mitochondria
(b) cork layer, phellogen and phelloderm
(c) peroxisomes
(d) ribosomes
(c) secondary phloem, phelloderm,
phellogen and cork layer
Sub-phylum Tunicate is also known as:
(d) phellem, phellogen and phelloderm
(a) Cephalochordata
37.
(b) Hemichordata
1 molecule of glucose?
(d) Agnatha
(a) 30
(b) 18
The tissues of the body are assigned to
(c) 12
(d) 6
four principal types. _____________
covers body surfaces, lines cavities and
38.
mature Pheretima:
(a) epithelial tissue
(b) connective tissue
(c) muscle tissue
39.
(d) nervous tissue
(a) 5-9
(b) 14-16
(c) 5-7
(d) 26-35
The living fossil of the Phylum
Arthropoda is:
Sphincter of Oddi occurs between
(a) Laccifer
(b) Locusta
(a) pylorus and duodenum
(c) Limulus
(d) Ichthyophis
(b) oesophagus and stomach
40.
(c) large intestine and small intestine
(d) ampulla of vater and duodenum
35.
The glandular tissue, clitellum, cover
the segments______________ in a
ducts, and forms glands:
34.
How many ATP are required in the
mesophyll cells of C4 plants to produce
(c) Urochordata
33.
Bark consists of :
Notocord is derived from:
(a) endoderm
(b) mesoderm
(c) ectoderm
(d) both a and b
In compact bone, ________________
connect adjacent lacunae providing a
pathway for nutrients to pass between
osteocytes:
(a) lamellae
(b) canaliculi
(c) osteonic canals
(d) blood vessels
TM
41.
43.
1. Coconut tree
:
Caudex
Teeth in Chondrichthyes are modified
_____________ scales which are
directed________________
2. Asoka tree
:
Caudex
(a) placoid, forwardly
3. Pinus
:
Excurrent habit
(b) cycloid, backwardly
4. Ficus
:
Deliquescent
Find out the incorrect pair :
(c) ctenoid, forwardly
(d) placoid, backwardly
habit
44.
(a) 1, 2 and 3
Syngenesious condition is found in?
(a) Poaceae
(b) 1 and 2
(b) Brassicaceae
(c) 2
(c) Asteraceae
(d) 3 and 4
42.
(d) Fabaceae
Half of pelvic girdle is known as
(a) os-innominatum
45.
Unicellular forms of Chlorophyceae
include:
(a) Chlamydomonas and Spirulina
(b) ilium
(c) synsacrum
(b) Chlamydomonas and Chlorella
(c) Chlorella and Spirulina
(d) suspensorium
TM
(d) Chlamydomonas and Spirogyra
ANSWER KEY
PHYSICS
1. (b)
2. (a)
3. (b)
4. (d)
5. (a)
6. (b)
7. (d)
8. (d)
9. (a)
10. (b)
11. (c)
12. (a)
13. (a)
14. (a)
15. (c)
CHEMISTRY
16. (c)
17. (c)
18. (d)
19. (d)
20. (c)
21. (b)
22. (a)
23. (d)
24. (a)
25. (b)
26. (c)
27. (c)
28. (d)
29. (a)
30. (a)
BIOLOGY
31. (d)
32. (c)
33. (a)
34. (d)
35. (b)
36. (c)
37. (c)
38. (b)
39. (c)
40. (b)
41. (c)
42. (a)
43. (d)
44. (c)
45. (b)
Dream on !!
š›œ•š›œ•
TM

SAMPLE PAPER +1 Moving to +2 (Medical)

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