Question

Write down structural formulae of 

(i) the third higher and 

(ii) the second lower homologue of CH₃ CH₂ COOH.

Answer 1

i. Structural formula of the third higher homologue is obtained by adding three – CH₂ – units to the carbon chain of the given structure.

ii. Structural formula of the second lower homologue is obtained by removing two – CH₂ – units from the carbon chain of the given structure.