Ncert Exercises & Solutions

IUPAC name of the following compounds.

(a) H–COOH

(b) CH₃COOH

(d) CH₃CH₂CH₂COOH

1. Methanoic acid, Ethanoic acid, Propanoic acid, Butanoic acid

2. Ethanoic acid, Methanoic acid, Propanoic acid, Butanoic acid

3. Methanoic acid, Ethanoic acid, Butanoic acid, Propanoic acid

4. Ethanoic acid, Methanoic acid, Butanoic acid, Propanoic acid

Hint: Functional group ''carboxylic'' is present

Explanation:

Step 1: First count the number of carbon name,

1 Methane

2 ethane

3 propane

4 butane

Suffix used for carboxylic acid is 'oic'

Step 2: Now the IUPAC given below
(a) H–COOH : Methanoic acid

(b) CH

_{3}

–COOH : Ethanoic acid

_{3}

–CH

_{2}

–COOH : Propanoic acid

(d) CH

_{3}

–CH

_{2}

–CH

_{2}

–COOH : Butanoic acid