Organic Chemistry CDS Questions

CDS Chemistry

Organic Chemistry MCQ Questions


1.
Organic chemistry is mainly defined as the branch of chemistry dealing with the study of compounds of which element?
A.
Oxygen
B.
Nitrogen
C.
Carbon
D.
Silicon
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ANSWER :
C. Carbon
2.
The unique property of carbon atoms to link with one another, forming long chains, branched chains, and rings, is known as:
A.
Isomerism
B.
Polymerisation
C.
Hybridisation
D.
Catenation
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ANSWER :
D. Catenation
3.
The valency of carbon, i.e., the number of covalent bonds it can normally form, is:
A.
Three
B.
Two
C.
Six
D.
Four
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ANSWER :
D. Four
4.
Compounds that contain only carbon and hydrogen atoms are collectively known as:
A.
Amines
B.
Esters
C.
Hydrocarbons
D.
Carbohydrates
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ANSWER :
C. Hydrocarbons
5.
Hydrocarbons containing only single covalent bonds between carbon atoms are called:
A.
Alkynes
B.
Alkenes
C.
Alkanes
D.
Arenes
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ANSWER :
C. Alkanes
6.
Hydrocarbons containing at least one carbon–carbon double bond are classified as:
A.
Alkynes
B.
Cycloalkanes
C.
Alkanes
D.
Alkenes
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ANSWER :
D. Alkenes