Question
Calcium imide on hydrolysis gives gas $$(B)$$ which on oxidation by bleaching powder gives gas $$(C).$$ Gas $$(C)$$ on reaction with magnesium give compound $$(D)$$ which on hydrolysis gives again gas $$(B).$$ Identify $$(B), (C)$$ and $$(D).$$
A.
$$N{H_3},{N_2},M{g_3}{N_2}$$
B.
$${N_2},N{H_3},MgNH$$
C.
$${N_2},{N_2}{O_5},Mg{\left( {N{O_3}} \right)_2}$$
D.
$$N{H_3},N{O_2},Mg{\left( {N{O_2}} \right)_2}$$
Answer :
$$N{H_3},{N_2},M{g_3}{N_2}$$
Solution :
$$\eqalign{
& Ca\left( {NH} \right) + 2{H_2}O \to Ca{\left( {OH} \right)_2} + \mathop {N{H_3}\left( g \right)}\limits_{\left( B \right)} \cr
& \mathop {2N{H_3}}\limits_{\left( B \right)} + 3CaOC{l_2} \to \mathop {{N_2}\left( g \right)}\limits_{\left( C \right)} + 3CaC{l_2} + 3{H_2}O \cr
& \mathop {{N_2}\left( g \right)}\limits_{\left( C \right)} + 3Mg \to \mathop {M{g_3}{N_2}}\limits_{\left( D \right)} \cr
& \mathop {M{g_3}{N_2}}\limits_{\left( D \right)} + 6{H_2}O \to 3Mg{\left( {OH} \right)_2} + \mathop {N{H_3}}\limits_{\left( B \right)} \cr} $$