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Chemistry General Science Test Hard Mode MCQs With Answers
Question # 1
A current of 9.65 ampere flowing for 10 minutes deposits 3.0 g of the metal which is monovalent the atomic mass of the metal is
Choose an answer
10
50
30
96.5
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Question # 2
At 500 K the equilibrium constant for reaction cis-C
2
H
2
CI
2
trans-C
2
H
2
CI
2
is 0.6. At the same temperature the equilibrium constant for the reaction trans-C
2
H
2
CI
2
cis-
C
2
H
2
CI
2
will be
Choose an answer
0.60
1.67
0.66
2.6
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Question # 3
The spectrum of helium is expected to be similar to that of
Choose an answer
H
Li
+
Na
He
+
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Question # 4
Causticisation process is used for the preparation of
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Caustic soda
Caustic potash
Baryata solution
Slaked lime
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Question # 5
Sea weeds are important source of
Choose an answer
Iron
Chlorine
Iodine
Bromine
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Question # 6
The pore size of the filter paper depends upon
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Nature of the medium
Temperature of the medium
Size of the particles
Mass of the particles
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Question # 7
Chile salt petre is
Choose an answer
NaNO
3
Na
2
SO
4
KNO
3
Na
2
S
2
O
3
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Question # 8
Leblanc process is employed in the manufacture of
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Baking soda
Washing soda
Potash
Plaster of paris
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Question # 9
Vital force theory was rejected by
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Berzelius
Kolbe
Wholer
Lavoiser
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Question # 10
The bond angle H - O - H in ice is closest to
Choose an answer
120° , 28°
60°
90°
109°
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Question # 11
Bleaching action of bleaching powder is due to the liberation of
Choose an answer
O
2
OCI
-
CI
2
CI
-
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Question # 12
On heating acetaldehyde with ammonical silver nitrate solution, we get
Choose an answer
CH
3
OH
Silver acetate
HCHO
Silver mirror
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Question # 13
The isomers due to the unequal distribution of carbon atoms on either side of the functional group belonging to the same homologous series are called
Choose an answer
Functional isomers
Position isomers
Chain isomers
Metamers
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Question # 14
Calcium cyanamide on treatment with steam under pressure gives NH
3
and
Choose an answer
Calcium carbonate
Calcium hydroxide
Calcium oxide
Calcium bicarbonate
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Question # 15
Which of the following has no tin in its composition?
Choose an answer
Solder
Bronze
Brass
Tin stone
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Question # 16
The rotation of two carbon atoms joined by double bond would happened only if
Choose an answer
P
i
bond is broken
Sigma bond is broken
Both bonds are broken
None of above
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Question # 17
A solution of sodium sulphate was electrolysed using some inert electrodes. The products at the electrodes are
Choose an answer
O
2,
H
2
O
2,
Na
O
2,
SO
2
O
2,
S
2O
2-
8
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Question # 18
Which of the following is acidic?
Choose an answer
SO
3
N
2
O
BeO
HgO
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Question # 19
In a crystal a
≠
b
≠
c, a =
γ
= 90
° and
β
≠
90
°. It is
Choose an answer
Monoclinic
Rhombic
Trigonal
Tetragonal
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Question # 20
At room temperature formaldehyde is
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Gas
Liquid
Solid
None of the above
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Question # 21
Potassium is kept in
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Water
Ammonia
Alcohol
Kerosene.
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Question # 22
Which of the following mineral does not contain Al?
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Cryolite
Mica
Feldspar
Fluorspar
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