Question

Element $M+N_2\underset{}{\overset{\Delta }{\to }}\underset{}{\overset{H_{2}O}{\to }}{NH}_3$
Element $M$ belonging to group $13$ can be ?

• A. $B$ or $Al$
• B. $Ga$ or $Al$
• C. $B$ or $Ga$
• D. $In$ or $TI$

Answer 1

The correct option is A $B$ or $Al$

$2B+N_2⟶2BN$

$2Al+N_2+⟶2AlN$

These 2 nitrites on heating with presence of $H_{2}O$ releases $N{H}_3$. So, the group $13$ elements are $B$ and $Al$