Question

Which of the following reactants on reaction with conc. $NaOH$ followed by acidification gives following lactone as the main product?

• A.
• B.
• C.
• D.

Answer 1

Answer: (B), (C)

gives Cannizaro's reaction with conc. $NaOH$
This compound on acidication gives a compound which have $-C{H}_{2}OH-COOH$ group, such groups on dehydration give lactone.
also undergoes Cannizaro's reaction with conc. $NaOH$