Question

In which of the following compounds -OH is the functional group? [NCERT Exemplar]
(a) Butanone
(b) Butanol
(c) Butanoic
(d) Butanal

Answer 1

Answer:

Answer: (b) Butanol

Explanation: Functional group is defined as the group of atoms which provide characteristic properties to a compound.

Butanone contains ketone  as the functional group.

Butanol contains alcohol  as the functional group.

Butanoic acid contains carboxylic acid   as the functional group.

Butanal  contains aldehyde   as the functional group

(c) Butanic acid is the answer.........

Answer 2

The correct answer is b) Butanol

Explanation:

• Ol is the suffix that is used in organic chemistry for the compound which contains OH(hydroxyl) group. This suffix is taken from alcohol therefore ol represents alcohol.
• Oic is the suffix used to denote carboxylic acid compounds, one suffix indicates ketone component and al suffix is used for aldehyde compounds.
• So as OH is a functional group which determines that it is alcohol and the compound which have alcohol as function group will end with ol suffix, therefore, the compound is butanol.  

Learn more about functional groups:

• Alcohol chemical formula: https://brainly.in/question/9107608