Question

Assertion (A): A mixture of $CaC{N}_2$ and graphite is known as nitration mixture.
Reason (R) : $N{H}_3$ is collected by downward displacement of air.

• A. Both (A) and (R) are true and (R) is the correct explanation of (A)
• B. Both (A) and (R) are true and (R) is not the correct explanation of (A)
• C. (A) is true and (R) is false
• D. (A) is false but (R) is true

Answer 1

The correct option is D (A) is false but (R) is true

$HN{O}_3+H_{2}S{O}_4$ is known as nitration mixture. So, A is wrong.
$N{H}_3$ is collected by downward displacement of air as $N{H}_3$ is lighter than air.