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NAT II Physical Science Chemistry MCQs With Answers
Question # 1
Which of the following reaction is used for detecting presence of carbonyl group?
Choose an answer
Reaction with hydroxylamine
Reaction with hydrazine
Reaction with phenyl hydrazine
All
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Question # 2
Ionic solids with defects, contain
Choose an answer
Equal number of cation and anion vacancies
Interstitial anions and anion vacancies
Cation vacancies only
Cation vacancies and interstitial cations
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Question # 3
Which of the following is monoatomic?
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Oxygen
Neon
Fluorine
Nitrogen.
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Question # 4
Oleum is
Choose an answer
Castor oil
Oil of vitriol
Fuming of H
2
SO
4
None of them
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Question # 5
Vital force theory was rejected by
Choose an answer
Berzelius
Kolbe
Wholer
Lavoiser
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Question # 6
Which of the following species participate in sulphonation of benzene ring?
Choose an answer
H
2
SO
4
HSO
-
3
SO
3
SO
-
2
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Question # 7
Which of the following statement regarding catalyst is not true?
Choose an answer
A catalyst remains unchanged in composition and quantity at the end of the reaction
A catalyst can initiate a reaction
A catalyst dose not alter the equilibrium in a reversible reaction
Catalysts are sometimes very specific in respect of reaction.
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Question # 8
The formula of nitre is
Choose an answer
KNO
3
NANO
2
NaCl
Na
2
CO
3
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Question # 9
Given below are some statements concerning formic acid, which of them is true?
Choose an answer
It is a weaker acid than acetic
it is a reducing agent
When its calcium salt is heated, it forms a ketone
It is an oxidizing agent
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Question # 10
The acid used in lead storage cells is
Choose an answer
Phosphoric acid
Nitric acid
Sulphuric acid
Hydrochloric acid
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Question # 11
Which is the most amphoteric?
Choose an answer
Na
2
O
MgO
Al
2
O
3
CaO
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Question # 12
The total number of protons in 10 g of calcium carbonate is (N
0
= 6.023 x 10
23
)
Choose an answer
1.5057 x 10
24
2.0478 x 10
24
3.0115 x 10
24
4.0956 x 10
24
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Question # 13
Magnesium keeps on burning in
Choose an answer
N
2
CO
2
N
2
O
N
2
as well as CO
2
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Question # 14
Which has maximum protein content?
Choose an answer
Ground nut
Cow milk
Egg
Wheat
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Question # 15
When a carbon atom forms single bonds with other carbon atoms, these hybird orbitals overlap with the orbitals of hydrogen to form four bonds which are
Choose an answer
Three sigma and one P
i
Two sigma andtwo P
i
One sigma and three P
i
Sigma
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Question # 16
Which of the following alkali metal hydroxides is the strongest base?
Choose an answer
LiOH
NaOH
KOH
CsOH
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