What is the number of moles of hydrogen atoms needed to obtain one mole of ethanamine from acetamide using $LiAlH_4 / \text{ether}$ as a reducing agent?

Which of the following reagents is used to convert a $-CN$ group to a $-CH_2NH_2$ group?

An organic compound $A$ upon reacting with $NH_3$ gives $B$. On heating $B$ gives $C$. $C$ in presence of $KOH$ reacts with $Br_2$ to give $CH_3CH_2NH_2$. $A$ is:

When ethanol is mixed with ammonia and passed over alumina,the compound formed is:

Hofmann degradation is given by:

An aromatic compound $A$ having molecular formula $C_7H_6O_2$ on treating with aqueous ammonia and heating forms compound $B$. The compound $B$ on reaction with molecular bromine and potassium hydroxide provides compound $C$ having molecular formula $C_6H_7N$. The structure of $A$ is