Two of these molecules are constitutional isomers.Identify these molecules and give their molecular formula:Explain why they are constitutional isomers.

The structures of 3 molecules A, B and C extracted from plants are shown below.

ACHCH2OCHCH2CHCCH2CH3CH3OHC: CH3CCH2CCCHCH3CH3CH3OOH

B:CH2CH2CHCH2CHCCH3CH3CH3OCOCH3

(a)Two of these molecules are constitutional isomers.

Identify these molecules and give their molecular formula.

(i)Molecules Molecular formula:

(ii)Explain why they are constitutional isomers.