Sample Paper Scholarship Test Worksheet With Answers - Dual/integrated Program For Two Year Page 4
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SP01/DIPTYIPTY/201618
CHEMISTRY
26. Which of the following is a thermal decomposition
34. Which of the following is incorrect match?
reaction?
(1) NaOH
Caustic soda
(1) 2H
O ® 2H
+ O
(2) 2AgCl ® 2Ag + Cl
(2) CaCl
+ Ca(OCl)
Bleaching powder
2
2
2
2
2
2
(3) ZnCO
® ZnO + CO
(4) 2NaCl ® 2Na + Cl
(3) Na
CO
Washing soda
3
2
2
2
3
27. 3Cl
+ 6NaOH ® 5NaCl + NaClO
+ 3H
O
(4) CaSO
.2H
O
Gypsum
2
3
2
4
2
In the above reaction Cl
acts as
35. Many salts absorb water from atmosphere. This property
2
(1) Oxidising agent
(2) Reducing agent
is called
(3) Both (1) and (2)
(4) Catalyst
(1) Deliquescence
(2) Efflorescence
28. Fe(s) + CuSO
® FeSO
+ Cu(s)
(3) Hydration
(4) Chemiluminescence
4 (aq)
4 (aq)
I. Displacement reaction
36. Second most abundant metal in the earth's crust is
II Redox reaction
(1) O
(2) Si
III. Combination reaction
(3) Al
(4) Fe
IV . Double displacement reaction
37. Process used for purification of aluminium is called
The reaction is
(1) Bayer's process
(2) Hoope's process
(1) I and II
(2) I and III
(3) Hall Haroult's process (4) Aluminothermy
(3) II and IV
(4) I, II and IV
38. Which is isoelectronic to CO
?
2
+
29. 2KCl
+ 3O
® 2KClO
(1) N
O
(2) NO
( s)
2 (g)
3 (s)
2
2
The correct statement is
(3) Both (1) and (2)
(4) None of these
(1) Reaction is endothermic
39. Curd can be stored in
(2) KCl is reducing agent
(1) Brass vessel
(2) Copper vessel
(3) Reverse reaction is combination reaction
(3) Steel
(4) Bronze
(4) Reaction is not redox
40. Which of the following does not contain covalent bond?
(1) AlCl
(2) KCN
30. C
H
COOH + xO
® yCO
+ zH
O
3
6
5
2
2
2
(3) Al
O
(4) All of these
x and y are
2
3
41. Groups in Mendellev's periodic table are
17
(1) 17 and 6
(2)
and 7
(1) 9
(2) 8
2
(3) 7
(4) 18
15
42. Which of the following is largest in size?
(3) 15 and 6
(4)
and 7
2
(1) F
(2) Na
+
31. Maximum H
concentration will be in
(3) Cl
(4) Ne
43. The phenomenon involved in cleaning action of soap is
(1) 0.03 M H
SO
(2) 0.04 M HCl
2
4
(1) Association
(2) Precipitation
(3) 0.5 M NaOH
(4) 0.05 M H
PO
3
4
(3) Emulsification
(4) Dissociation
32. Chemical formula of plaster of paris will be
44. Maximum numbers of elements in periodic table are
1
(1) CaSO
.
H
O
(2) CaSO
.2H
O
(1) Metals
(2) Nonmetals
4
2
4
2
2
(3) Metalloid
(4) Solids
(3) (CaSO
)
.H
O
(4) CaSO
.H
O
4
2
2
4
2
45. Molarity of 24.5% (by mass) H
SO
solution will be
2
4
33. Which of the following is monobasic acid?
(density = 1.5 gm/cc, molar mass of H
SO
= 98)
2
4
(1) H
BO
(2) HCl
(1) 3
(2) 3.75
3
3
(3) 2.5
(4) 4.5
(3) H
PO
(4) All
3
2
Space Fo r Ro ugh Wo rk
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