Which acid of each pair would you expect to be stronger?
Give reasons:
(I) F - CH2 - COOH or CI - CH2 - COOH
Solution-
1.The larger the electron-withdrawing inductive effect the greater is the acidity.−I effect of F>Cl. Therefore, Fluoroacetic acid is stronger acid than chloroacetic acid.
2.P-nitro benzoic acid is more acidic than benzoic acid, because nitro group have -I effect (electron withdrawing group) due which it withdraws electron toward itself and deactivate the benzene ring to electrophilic attack, therefore, carboxylic acid group easily releases H+ ion than benzoic acid.
1.The larger the electron-withdrawing inductive effect the greater is the acidity.−I effect of F>Cl. Therefore, Fluoroacetic acid is stronger acid than chloroacetic acid.
2.P-nitro benzoic acid is more acidic than benzoic acid, because nitro group have -I effect (electron withdrawing group) due which it withdraws electron toward itself and deactivate the benzene ring to electrophilic attack, therefore, carboxylic acid group easily releases H+ ion than benzoic acid.