CH2 = CH – CH2 – CH2 – COOH + CHCl3
CH3 – CH2 – CH2 – CH2 – COOH + CHCl3
CH2 = CH – CH2 –COOH + CHCl3
CH3 CH2 CH2 COOH + CHCl3
Methyl ketones get oxidized by alkali + X2 (or) NaOCl to give haloform and a carboxylate ion with one carbon less. During this process C = C & C≡ C do not get oxidized.