Which of the following is an incorrect match?

Hydrogen gains an electron to achieve the configuration of a noble gas. It behaves like which of the following?

Calcium imide on hydrolysis gives gas $(B)$ which on oxidation by bleaching powder gives gas $(C)$. Gas $(C)$ on reaction with magnesium gives compound $(D)$ which on hydrolysis again gives gas $(B)$. Identify $(B)$,$(C)$ and $(D)$.

Hydrogen has a tendency to gain one electron to acquire the helium configuration. In this respect,it resembles:

$LiAlH_4$ is obtained by reacting an excess of $LiH$ with an ethereal solution of $AlCl_3$. Identify the reactant that is used in excess.

Hydrogen acts as a reducing agent and thus resembles