(a) Name any three functional groups present in carbon compounds and write their formulae.
(b) Draw the structures of the following compounds indicating the functional group present in each , propanal, propanone, propanoic acid, propanol

Explanation

(a) . Alcoholic group `rArr` -OH , Aldehyde `rArr` -CHO, Ketone `rArr` gtC=O
(b) Propanol : `H-overset(H)overset(|)underset(H)underset(|)(C)-overset(H)overset(|)underset(H)underset(|)(C)-CHO" Propanone" H_(3)C-underset(O)underset(||)(C)-CH_(3)`
Propanoic acid `CH_(3)-CH_(2)-COOH " Propanol" CH_(3)-CH_(2)-CH_(2)OH`