JEE Main levelSingle correct optionDifficulty 2 of 3o1191
Methyl benzoate is heated with a large excess of ethanol containing a little concentrated HX2SOX4. The main products are
Abenzoic acid and ethyl methyl ether
Bethyl benzoate and dimethyl ether
Cethyl benzoate and methanol
Dbenzoic acid and diethyl ether
Answer: C
The reaction is an acid-catalysed transesterification: ethanol replaces methanol on the acyl carbon via a tetrahedral intermediate, and a large excess of ethanol drives the equilibrium to ethyl benzoate plus methanol.