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NAT I Engineering Chemistry MCQs With Answers
Question # 1
The rotation of two carbon atoms joined by double bond would happened only if
Choose an answer
Pi bond is broken
Sigma bond is broken
Both bonds are broken
None of above
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Question # 2
Which of the following process is used to separate insoluble particles from liquids?
Choose an answer
Separation
Filtration
Crystallization
Condensation
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Question # 3
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 # 4
Detergents are
Choose an answer
Synthetic products
Natural products
Both A and B
None of the above
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Question # 5
Natural frertilizer provides phosphorus to plants in the form of P
2
O
5
Choose an answer
1.2 kg
2.2 kg
3.2 kg
4 kg
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Question # 6
Which of the following is a molecular disease?
Choose an answer
Allergy
Cancer
German measles
Sickle cell anemia
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Question # 7
The wire in the flash bulbs is made up of
Choose an answer
Mg
Ba
Cu
Ag
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Question # 8
BiCI
3
on hydrolysis forms a white precipitate of
Choose an answer
Bismuthio is acid
Bismuth oxychloride
Bismuth pentachloride
Bismuth hydroxide
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Question # 9
If a salt bridge is removed between the two half cells the voltage
Choose an answer
Drops to zero
Does not change
Increases gradually
Increases rapidly
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Question # 10
Which of the following imparts violet colouration to the non-luiminous flame of Bunsen burner?
Choose an answer
NaCI
BaCI
2
CaCI
2
KCI
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Question # 11
Most common reactions of benzene and its derivatives are
Choose an answer
Electrophilic addition reactions
Electrophilic substitution reactions.
Nucleophilic addition reactions
Nucleophilic substitution reactions
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