Ammonia on reaction with hypochlorite anion,can form

What are the products obtained when ammonia is reacted with excess chlorine?

The incorrect statement regarding $15^{th}$ group hydrides $(EH_3)$ where $E = N, P, As, Sb, Bi$ is:

Which of the following is metaphosphoric acid?

$A$ tetra-atomic molecule $(A)$ on reaction with nitrogen $(I)$ oxide,produces two substances $(B)$ and $(C).$ $(B)$ is a dehydrating agent in its monomeric form while substance $(C)$ is a diatomic gas which shows almost inert behaviour. The substances $(A)$,$(B)$,and $(C)$ respectively will be

$A$ gas at low temperature does not react with most compounds. It is almost inert and is used to create an inert atmosphere in bulbs. The combustion of this gas is exceptionally an endothermic reaction. Based on the given information,we can conclude that the gas is