Question

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

• A. $P_4,P_4{O}_{10},N_2$
• B. $P_4,N_2{O}_5,N_2$
• C. $P_4,P_2{O}_3,Ar$
• D. $P_4,P_2{O}_3,O_2$

Answer 1

Answer: (A)

$P_4,P_4{O}_{10},N_2$

$P_4+10N_{2}O\to P_4{O}_{10}+N_2$
So $A$ is $P_4$ which is a tetra-atomic molecule.
$B$ is $P_4{O}_{1}0$ which is dehydrating agent.
$C$ is $N_2$ is diatomic gas which shows almost inert character.