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 SAMPLE QUESTION PAPER
READ INSTRUCTIONS CAREFULLY
M. MARKS = 95
TIME: 30 Min.
1.
2.
Please mention your Name, Roll No. on the OMR Answer Sheet. Also please mention
on right hand bottom of answer sheet about other Tutors of Maths, Physics, Bio.
(If finalized)
Question paper carries 30 questions.
3.
Q. No. 1 to 20 [3 Marks each (Negative Marking (-1) for wrong answer].
Q. No. 21 to 23 (More than One Answer) Negative Marking
Q. No. 24 to 26 [3 Marks each (Negative Marking (-1) for wrong answer].
Q. No. 27 to 29 (Integer Type) No Negative Marking
Q. No. 30 (Matrix Match) - 8 Marks each (No Negative Marking)
4.
6.
Please Use HB Pencil for darkening the appropriate answer.
Any student adopting unfair means or disturbing other students or creating nuisance
in the hall will be disqualified.
Switch off your mobile while in the Examination Hall
No body should leave the Hall until all Answer sheets are collected.
7.
8.
CHEMISTRY
1.
Which of the following Lewis structure is not correct?
H
a.
H
C
C
H
b.
c.
O
H
H
H
C
d.
H
H
H
H
2.
B
Which of the following is not a true statement.
3.
a. Metallic character increases from top to bottom in periodic table.
b. Non-metallic character increases from left to right in periodic table.
c. Basic strengths of oxide decreases from top to bottom.
d. Basic strength of oxide increases from top to bottom.
C
The number of atoms of the constituent element in 70 gm NH4OH respectively are
Dr. Sangeeta Khanna Ph.D
S
1
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CHEMISTRY Dr. Sangeeta Khanna Ph.D
[At. No. of N = 14, O = 16, H = 1]
4.
5.
6.
7.
N
O
H
N
O
H
23
23
23
23
23
a. 12 × 10 3 × 10 30 × 10
b. 12 × 10
12 × 10
60 × 1023
23
23
23
23
23
c. 6 × 10
3 × 10 6 × 10
d. 6.0213 × 10 6.023 × 10
4 × 6.023 × 1023
B
An element ‘A’ on reacting with oxygen forms an oxide AO2. This oxide on dissolving in water turns
Red litmus to Blue. Which of the following is True for element ‘A’.
a. Element ‘A’ is a metal
b. Oxide AO2 is Acidic
c. Element ‘A’ is a noble gas
d. Element ‘A’ is a non-metal
A
Which of the two sets of the chemical when reacted will produce CO2 gas.
+I. CH3COOH + Na
II. Na2CO3 + HCl
III. CH3COOH + NaHCO3
IV. CH3COOH + Na2CO3
a. II, III & IV
b. III & IV
c. II & III
A
In the given test tube, the solid X when reacts
with solution Y, reaction takes place. Then X and
Y should be
a. Y – ZnSO4, X – Ag
b. X = Ag; Y = CuSO4
c. Y – ZnSO4, X – Cu
d. X – Fe, Y – CuSO4
D
What will be the IUPAC name of following compounds
CH2 −CH3 CH3
|
d. I and IV
Y
X
|
CH3 − CH2 − CH − CH2 − C H − CH3
8.
a. 2-methyl-4-ethylhexane
b. 3-Ethyl-5-Methylhexane
c. Isooctane
d. 4-Ethyl-2-methylhexane
D
What will be the formula of Aluminium permangante if formula of Barium permanganate is Ba(MnO4)2.
9.
a. AlMnO4
b. Al2(MnO4)3
c. Al(MnO4)3
d. Al3(MnO4)2
C
Which of the following pair of compounds can not undergo addition reaction.
a. C3H8 & C4H10
b. C3H6 & C3H4
c. C3H6 & C2H4
A
10. X is a metal of valency 3. Hence it will be in the same group as
d. C3H6 & C2H2
a. Ba
b. Ga
D,B
11. A hydrocarbon of molecular mass 84 is
c. K
d. B
c. An alkane
d. none
a. An alkyne
B
b.
An alkene
Dr. Sangeeta Khanna Ph.D
2
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CHEMISTRY Dr. Sangeeta Khanna Ph.D
12. Which among the following reaction is not an oxidation – Reduction reaction?
electric
a. 2H2O ⎯⎯⎯⎯→ 2H2 + O2
b. Fe(s)+ 4H2O(g) ⎯→ Fe3O4(S) + H2(g)
current
c. C + O2 ⎯→ CO2
d. AlCl3 + 3NaOH ⎯→ Al(OH)3() + 3NaCl
D
13. Which of the following is a substitution reaction:
Sunlight
a. CH3–CH3 +Cl2 ⎯⎯
⎯⎯→ CH3 –CH2 –Cl + HCl
c. CH2 = CH2 + HCl ⎯→ CH3– CH2–Cl
b. 2C4H10 + 9O2 ⎯→ 8CO + 10H2O + Heat
Cl
Cl
d. CH ≡ CH + Cl 2 → \ CH − CH /
\ Cl
Cl /
A
14. The elements X, Y, A & B belong to 1, 2, 14, 17 group of periodic table. Which of the following
compound will be most ionic:
a. XY
b. XA
c. AB
d. XB
D
15. The elements A, B, C and D have atomic numbers 12, 7, 1 and 9 respectively. Give the chemical
formulae of the compound formed by (A and D) & (B & C):
a. AD ; BC
b. AD2 ; BC3
c. AD3 ; BC2
B
16. In the reaction: I2 + 10HNO3→2HIO3 + 4H2O + 10NO2
Iodine is:
d. None
a. oxidized
b. reduced
c. neither oxidized nor reduced
d. neutralized
A
17. The element with the largest size in the third period is:
a. lithium
b. fluorine
c. sodium
d. oxygen
C
18. What is the percentage composition of each element in zinc phosphate Zn3(PO4)2 ?
[Zn = 65.5, P = 31, O = 16.]
a.
c.
A
Zn
50.84%
16.04%
P
16.04%
33.12%
O
33.12%
50.84%
b.
d.
Zn
16.04%
33.12%
P
50.84%
50.84%
O
33.12%
16.04%
Using the below table answer the following questions. (Q. No. 19 to 20)
The following table shows the position of still elements A, B, C, D, E and F in the periodic table.
1
2
A
G
D
3 to 12
13
14
15
16
17
18
H
C
F
B
E
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3
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CHEMISTRY Dr. Sangeeta Khanna Ph.D
19. Which element is a non-metal with valency 4 ?
a. B
b. E
B
20. What is the formula of sulphate of D.
a. D2(SO4)3
B
b. DSO4
c. F
d. C
c. D2SO4
d. D3(SO4)2
MORE THAN ONE ANSWER (Q.No. 21 to 23)
21. Which among the following statement is correct?
a.
b.
c.
Ethanoic acid gives a colourless and odourless gas with Na2CO3 which turns lime water milky
Ethanoic acid is soluble in water.
On reaction with absolute alcohol, ethanoic acid gives a sweet smelling substance, which is used
for making flavouring agents & perfumes
d. It has smell of rotten eggs.
A,B,C
22. A student dissolves some ferrous sulphate crystal in water and adds a few drops of conc. H2SO4 to
make the solution clear. However, the solution so obtained is not of pale green colour. Instead it has
pale brown colour. Which of the following statements are correct.
a. The pale brown colour is due to the auto-oxidation of Fe2+ to Fe3+ by atmospheric oxygen
b. The solution can be made pale green by boiling with a few iron filings.
c. Fe3+ is more stable than Fe2+
d. Fe+2 is more stable than Fe+3
A,B,C
23. Point out the correct statement:
a. The electrode at which oxidation takes place is known as anode
b. The electrode at which reduction takes place is called cathode
c. The electrodes at which electrons are gained is called cathode
d. The electrode at which electrons are lost is called cathode
A,B,C
PHYSICS
24. Circuit I: ammeter reads current i1 and voltmeter reads V1 Circuit II: ammeter reads current i2 and
voltmeter reads V2
V2
V1
V
V
R3
R2
R2
R1
Dr. Sangeeta
Khanna Ph.D
E
i1
A
i2
COACHING CIRCLE
R1
4
A
E
I
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II
CHEMISTRY Dr. Sangeeta Khanna Ph.D
The relationship between the readings is
a. i1 > i2; V1 = V2
b. i1 < i2; V1 = V2
c. i1 > i2; V1 > V2
d. i1 > i2; V1 < V2
Hint→ Equivalent resistance in I is more than II
B
25. Two lamps, one rated 100 W at 220 V and the other 60 W at 220 V are connected in parallel to a 220
V supply. What current is drawn from the supply line?
a. 7.27 A
C
Sol.
P1 = 100 W,
b. 0.0727
c. 0.727 A
V = 220 V
Alternate solution
P
100
I1 = 1 =
V 220
P 1 = V × I1
P1 100
…(I)
=
V 220
220 220 × 220
R1 =
=
Ω
100
100
220
P2 = 60, V = 220 V
P 2 = V × I2
60 = 220 × I2
60
I2 =
220
220 220 × 220
R2 =
=
60
60
220
Resultant resistance in parallel
1
1
1
=
+
R R1 R 2
100
60
160
=
=
+
220 × 220 220 × 220
220 × 220
220 × 220
∴ R=
160
V
220
160
I=
=
= 0.727 A
=
R 220 × 220
220
160
26. Focal length of a convex lens is +25 cm. Its power is
I2 =
a. +
1
D
4
b. + 4D
d. 0.342 A
c. −
Dr. Sangeeta Khanna Ph.D
I2 =
60
220
I = I1 + I2 =
160 = 0.727 A
220
1
D
4
d. – 4D
5
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CHEMISTRY Dr. Sangeeta Khanna Ph.D
B
INTEGER TYPE (NO NEGATIVE MARKING)
27. How many structural isomers are possible for molecular C6H14.
Sol. 5
CH3
H3 C − CH2 − CH2 − CH2 − CH3 ;
Hexane
|
CH3 − C H − CH2 − CH2 − CH3
2−Methylpen tan e
CH3
CH3
|
∗
CH3 − C H2 − C H − CH2 − CH3 ;
3 −Methylpen tan e
|
CH3 − C − CH2 − CH3
|
CH3
CH3 CH3
|
|
CH3 − C H − C H − CH3
2, 3-Dimethylbutane
28. How many moles will be present in 980 gm H2SO4 [At. Wt. of S = 32; O = 16; H = 1]
Sol. 10
29. What is pH & ROH of water at 25°?
Sol. 7
MATRIX MATCH (NO NEGATIVE MARKING)
30. Match the Column I with Column II.
(A)
(B)
Column – I
Cu + 2AgNO3 ⎯→ Cu(NO3)2 + 2Ag
1 + CO
O2
2
2
(C)
1
Δ
Pb(NO3)2 ⎯⎯→
PbO + 2NO2 + O2
2
(D) H2 + Cl2 ⎯→ 2HCl
Sol. A → p, q; B → q, r; C → q, r; D → q, s
Δ
Ag2CO3 ⎯⎯→
Ag +
Column – II
(p) Displacement reaction
(q) Redox Reaction
(r)
Decomposition Reaction
(s)
Combination Reaction
Dr. Sangeeta Khanna Ph.D
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CHEMISTRY