Question

Number of active hydrogen which can react with $C{H}_{3}MgBr$ in the above given compound are:

Answer 1

Here, compound contains three functional groups which reacts with grignard reagent and forms methane gas.

Hydrogen of $-OH$, $-COOH$ and $-C\equiv C-H$ will react with $3$ moles of $C{H}_{3}MgBr$ to liberate $3$ moles of $C{H}_4$ gas.

Here Grignard reagent acts as base.