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NAT I Medical Chemistry MCQs With Answers
Question # 1
Which one of the following compounds does not exist?
Choose an answer
NCI
5
AsF
5
SbCI
5
PF
5
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Question # 2
When pressure is applied to the equilibrium system Ice Water Which of the following phenomenon will happen?
Choose an answer
More ice will be formed
Water will evaporate
More water will be formed
Equilibrium will not be formed
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Question # 3
Reaction of acids with alcohols is also known as
Choose an answer
Esterification
Saponification
Alkalization
None
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Question # 4
Water (H2O) is liquid while hydrogen sulphide (H
2
S) is a gas because
Choose an answer
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 # 5
Octane number is zero for
Choose an answer
n-Heptane
Isooctane
n-Hexane
Isoheptane
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Question # 6
The rate of reaction between A and B increases by a factor of 100 when the concentration with respect to A is increased 10 folds the order of reaction w.r.t A is
Choose an answer
10
1
4
2
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Question # 7
How many kinds of space lattices are possible in a crystal?
Choose an answer
23
7
230
14
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Question # 8
The dimension of rate constant of a second order reaction involves
Choose an answer
Neither time nor concentration
Only time
Time and concentration
Time and square of concentration
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Question # 9
Which of the following statements is most appropriate about effective nuclear charge? It depends upon
Choose an answer
The shielding constant
The atomic number
The charge on the nucleus
Both the nuclear charge and the shielding constant
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