Organic Chemistry NDA Questions

NDA Chemistry

Organic Chemistry MCQ Questions


13.
The –OH group, when attached to a carbon chain, characterises which class of compounds?
A.
Ketones
B.
Alcohols
C.
Carboxylic acids
D.
Aldehydes
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ANSWER :
B. Alcohols
14.
Which functional group is present in acetic acid (CH3COOH)?
A.
Amine group (–NH2)
B.
Ketone group (>C=O)
C.
Carboxylic acid group (–COOH)
D.
Aldehyde group (–CHO)
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ANSWER :
C. Carboxylic acid group (–COOH)
15.
The functional group –CHO represents which class of organic compounds?
A.
Ethers
B.
Aldehydes
C.
Esters
D.
Ketones
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ANSWER :
B. Aldehydes
16.
A carbonyl group (>C=O) attached to two carbon atoms within the chain (not at the end) indicates the presence of a/an:
A.
Alcohol
B.
Aldehyde
C.
Ketone
D.
Carboxylic acid
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ANSWER :
C. Ketone
17.
The functional group of the halogenated hydrocarbons is represented as:
A.
–X (halogen atom)
B.
–OH
C.
–CHO
D.
–COOH
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ANSWER :
A. –X (halogen atom)
18.
Which of the following is the functional group of ethers?
A.
–OH
B.
–COOH
C.
–CHO
D.
–O–
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ANSWER :
D. –O–