Consider the given reaction sequence. Identify the IUPAC name of the major final product [Q].

Step-by-step solution

The reaction of acetone with HCN is a nucleophilic addition reaction, which yields acetone cyanohydrin as product [P]. CH ₃- CO - CH ₃ + HCN CH ₃- C ( OH )( CN )- CH ₃ Upon heating with concentrated H ₂ SO ₄ , acetone cyanohydrin [P] undergoes dehydration (loss of a water molecule) to form a double bond. The water eliminated during this dehydration process facilitates the hydrolysis of the nitrile group ( -CN ) to a carboxylic acid group ( -COOH ) in the strongly acidic medium. CH ₃- C ( OH )( CN )- CH ₃ conc. H ₂