Question

What is the formula of colorless alkaline gas C?

• A. $N_2$
• B. $N{H}_3$
• C. $NO$
• D. None ofthese

Answer 1

The correct option is B $N{H}_3$

1) Forming B ($N{O}_2$) a brown colored gas

$N{H}_{4}N{O}_2+HCl\to N{H}_{4}Cl+HN{O}_2$

$3HN{O}_2\to HN{O}_3+H_{2}O+2NO$

$2NO+O_2\to 2N{O}_2$ (brown color gas)

2) Forming ($N{H}_3$ ) alkaline gas

$N{H}_{4}N{O}_3+NaOH\to N{H}_3+H_{2}O+NaN{O}_3$
$N{H}_3$ is a colorless alkaline gas.

3) Forming ($N_2$) as colorless gas

$N{H}_{4}N{O}_3=N_2+O_2+H_{2}O$