Classification of Functional Group

Q. Which functional group is present in the following compounds?
a. 2-Methylpentanal
b. 2-Pentanone
c. 3-Ethylhexanoic acid [3 Marks]

Q. The functional group present in the given compound is ________.

1. alcohol
2. carboxylic acid
3. aldehyde
4. ketone

Q. What is the name of the compound given below?

1. But-2-ene
2. But-1-yne
3. Butene
4. Butane

Q. Oct-1-yne has the same number of hydrogen atoms as of __________.

1. hex-1-ene
2. but-1-ene
3. hept-1-ene
4. pent-1-ene

Q.

The functional group of ethanol and ethanal respectively are:

1. -OH and -C=O

2. -OH and -CHO

3. -CHO and -C=O

4. -C=O and -CHO

Q. The functional group in butan-1-ol is:

1. -OH
2. -COOH
3. -CHO
4. -NH₂

Q. What is the ratio of hydrogen atoms present in hept-2-yne to that in but-2-ene?

1. 3:4
2. 5:2
3. 6:5
4. 3:2

Q. The structural formula of ethyl ethanoate is

1. 
2. 
3. 
4. 

Q. Match the following functional groups with their names:

1. P-1; Q-2; R-3; S-4
2. P-2; Q-4; R-1; S-3
3. P-4; Q-2; R-1; S-3
4. P-3; Q-1; R-3; S-4

Q.

Alkenes are also called _______.

1. paraffins

2. olefins

3. acetylenes

4. None of these