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NAT I Medical Chemistry MCQs With Answers
Question # 1
Hess's law deals with
Choose an answer
Changes in heat or reaction
Rate of reaction
Equilibrium constant
Influence of pressure on volume of a gas
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Question # 2
Which of the following alcohols cannot be produced by treatment of aldehydes or ketones with NaBH
4
or LiAIH
4
?
Choose an answer
1-Propanol
2-Propanol
2-Methyl-2-propanol
Ethanol
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Question # 3
Which quantum number is sufficient to describe the electron is hydrogen atom?
Choose an answer
/
n
m
s
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Question # 4
The number of atoms in 0.0004 g of magnesium is close to
Choose an answer
24
2 x 10
20
10
20
6.02 x 10
23
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Question # 5
Which is true for an element R present in group 13 of the periodic table?
Choose an answer
It is a gas at room temperature
It has oxidation state of +4
It forms R
2
O
3
It forms RX
2
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Question # 6
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 # 7
An endothermic reaction is one in which
Choose an answer
Heat is converted into electricity
Heat is obsorbed
Heat is evolved
Heat is converted into mechanical work
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Question # 8
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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