Appeared in: 2025 (2 sets)
(a) (i) Identify A, B and C in the following reactions :
$$\text{Toluene} + \text{CrO}_3 \xrightarrow{(\text{CH}_3\text{CO})_2\text{O}}{273-283\text{ K}} \text{A} \xrightarrow{\text{H}_3\text{O}^+} \text{B}$$
$$\text{B} \xrightarrow{\text{Conc. NaOH}} \text{C} + \text{Sodium benzoate}$$
(ii) Give reasons for the following :
(I) Carboxylic acids do not give the characteristic reactions of carbonyl group.
(II) Ethanoic acid is a stronger acid than ethanol.
OR
(b) (i) Write the product(s) in the following reactions :
(I) $2\text{CH}_3\text{COOH} \xrightarrow[\text{heat}]{\text{P}_4\text{O}_{10}}$
(II) Benzoyl chloride + $(\text{CH}_3)_2\text{Cd} \rightarrow$
(III) Phthalamide $\xrightarrow{\text{strong heating}}$
(ii) Write the reaction involved in the following reactions :
(I) Wolff-Kishner Reduction
(II) Decarboxylation Reaction