Question 1

SCQEASY

The heating of $NH_4NO_2$ at $60-70$ $^\circ$ C and $NH_4NO_3$ at $200-250$ $^\circ$ C is associated with the formation of nitrogen containing compounds $X$ and $Y$ , respectively. $X$ and $Y$ , respectively, are

(A)

$N_2$ and $N_2O$

(B)

$NH_3$ and $NO_2$

(C)

$NO$ and $N_2O$

(D)

$N_2$ and $NH_3$

Detailed Solution

Ammonium nitrite ( $NH_4NO_2$ ) on heating undergoes thermal decomposition to produce nitrogen gas ( $N_2$ ): $NH_4NO_2 \xrightarrow{60-70 ^\circ C} N_2 + 2H_2O$ Ammonium nitrate ( $NH_4NO_3$ ) on controlled heating produces nitrous oxide ( $N_2O$ ): $NH_4NO_3 \xrightarrow{200-250 ^\circ C} N_2O + 2H_2O$ Thus, $X = N_2$ and $Y = N_2O$ .

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