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NAT I Medical Chemistry MCQs With Answers
Question # 1
The credit of discovering neutron goes to
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Rutherford
Langmuir
Chadwick
Austen
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Question # 2
Wholer prepared ures from
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Ammonia
NH
4
CNO
NH
3
uric acid
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Question # 3
Most common reactions of benzene and its derivatives are
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Electrophilic addition reactions
Electrophilic substitution reactions.
Nucleophilic addition reactions
Nucleophilic substitution reactions
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Question # 4
Which is the most volatile compound?
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HI
HCI
HBr
HF
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Question # 5
Which one is not usually used for the crystallization
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Acetone
Acetic acid
Sulphuric acid
Chloroform
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Question # 6
Which of the following has greatest reducing power?
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HI
Hbr
HCI
HI
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Question # 7
Octane number is zero for
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n-Heptane
Isooctane
n-Hexane
Isoheptane
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Question # 8
When sulphur is boiled with Na
2
SO
3
solution the compound formed is
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Sodium sulphides
Sodium sulphates
Sodium persulphate
Sodium thiosulphate
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Question # 9
When KCIO
3
is heated it decomposes into KCI and O
2
if some MnO
2
is added the reaction goes much faster because
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MnO
2
decomposes to give O
2
MnO
2
provides heat by reacting
Better contact is provided by MnO
2
MnO
2
acts as a catalyst
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