Question

Which of the following is an organic acid?

CH3COOH
C2H6O
CH2O
CH4

Answer 1

c) CH20

Hope this helped

Answer 2

Answer : The correct option is,
`CH_3COOH`

Explanation :

Organic acid : It is an organic compound that has acidic properties.

The common organic acid is the carboxylic acid. The acidity of carboxylic acid is associated with their carboxyl group (-COOH).

(a)
`CH_3COOH` :

It belongs to carboxylic acid functional group in which the the
`-COOH` group is directly attached to the
`CH_3` alkyl group.

(b)
`CH_2O\text{ or }HCHO` :

It belongs to an aldehyde functional group in which the the
`-CHO` group is directly attached to the hydrogen.

(c)
`C_2H_6O\text{ or }C_2H_5OH` :

It belongs to an alcoholic functional group in which the the
`-OH` group is directly attached to the
`C_2H_5` alkyl group.

(d)
`CH_4` : It is a methane molecule.

Hence, an organic acid is
`CH_3COOH`