In a set of reactions, acetic acid yielded product D. SOCl Benzene Anhy.AlCl CH COOH A -> -> HCN HOH B C D. -> -> The D would be (RPMT 2010) (a) (b) (c) (d) Ans. (d) Sol. Acetic acid when treated with SOCl gives acetyl chloride. With benzene, acetyl chloride gives PhCOCH which upon addition of HCN gives a cyanated product. Finally, upon adding an acid, the cyanide group is converted to carboxylic acid. We can write the reaction as- Therefore, the correct answer is option (d) – Carboxylic Acid and Its Derivatives