Carbon - Different Forms NDA Questions

NDA Chemistry

Carbon - Different Forms MCQ Questions


7.
Magnesium carbonate is an ingredient of ______
A.
Face cream
B.
Tooth paste
C.
Hair oil
D.
Talcum powder
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ANSWER :
B. Tooth paste
8.
What is the thermodynamically most stable allotrope of carbon?
A.
Graphite
B.
Diamond
C.
Fullerene
D.
None of these
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ANSWER :
A. Graphite
9.
What is catenation in the context of hydrocarbons?
A.
Formation of bonds
B.
Ability to react with water
C.
Solubility in water
D.
Chain formation capability
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ANSWER :
D. Chain formation capability
10.
Buckminster fullerene molecule has 60 vertices and each one is occupied by one carbon atom and it also contains both single and double bonds with C-C distances of _____ and _____ respectively.
A.
138.3 pm and 135.9 pm
B.
209.7 pm and 316 pm
C.
143.5 pm and 138.3 pm
D.
138.9 pm and 142.8 pm
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ANSWER :
C. 143.5 pm and 138.3 pm
11.
Due to property of catenation and pĪ€â€“ pĪ€ bond formation, carbon is able to show _____ forms
A.
Allotropic
B.
Amphoteric
C.
Solubility
D.
Catalytic
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ANSWER :
A. Allotropic
12.
Which of the following compounds is an isomer of pentene?
A.
Butane
B.
Hexene
C.
Propane
D.
None of these
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ANSWER :
B. Hexene