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NAT I Medical Chemistry MCQs With Answers
Question # 1
Which of the following has greatest tendency to lose electron?
Choose an answer
F
Fr
S
Be
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Question # 2
Which metal is protected by a layer of its own oxide?
Choose an answer
AI
Ag
Au
Fe
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Question # 3
Which of the substances Na, Hg, S Pt and graphic can be used as electrodes in electrolytic cells having aqueous solution?
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Na,Pt and graphite
Na and Hg
Pt and graphite only
Na and S only
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Question # 4
Which of the following has least mass?
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2 gram atom of nitrogen
3 x 10
23
atoms of C
1 mole of S
7.0 g of Ag.
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Question # 5
Which of the following species participate in sulphonation of benzene ring?
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H
2
SO
4
HSO
-
3
SO
3
SO
-
2
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Question # 6
Water (H2O) is liquid while hydrogen sulphide (H
2
S) is a gas because
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Water has higher molecular weight
Hydrogen sulphide is a weak acid
Sulphur has high electronegativity than oxygen
Water molecules associate through hydrogen bonding.
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Question # 7
Crystal can be classified in to basic crystal habits
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7
4
14
3
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Question # 8
Among the alkaline earth metals the element forming predominantly covalent compounds is
Choose an answer
Be
Mg
Sr
Calcium
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Question # 9
The relative rate of diffusion of a gas (molecular wright - 128) as compared to oxygen is
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2 times
1/4
1/8
1/2
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