The major product obtained in the following reaction is:

An organic compound '$X$' having molecular formula $C_5H_{10}O$ yields phenylhydrazone and gives negative response to the iodoform test and Tollens' test. It produces $n-$pentane on reduction. '$X$' could be

The above reduction can be best carried out by

The reaction involving the reduction of a ketone to an alkane using zinc amalgam $(Zn-Hg)$ and concentrated hydrochloric acid $(HCl)$ is known as:

Which of the following on reaction with Grignard reagent followed by hydrolysis forms a secondary alcohol?

In the following reaction,the major product $X$ is