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Calcium on heating in $\mathrm{N}_2$ yields an ionic compound $A$, which reacts with water to give $\mathrm{Ca}(\mathrm{OH})_2$ and a gas $B$. Identify $A$ and $B$
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Verified Answer
The correct answer is:
$\mathrm{Ca}_3 \mathrm{~N}_2, \mathrm{NH}_3$
$3 \mathrm{Ca}+\mathrm{N}_2 \stackrel{\Delta}{\longrightarrow} \mathrm{Ca}_3 \mathrm{~N}_2$
$$
\begin{aligned}
& \mathrm{Ca}_3 \mathrm{~N}_2+6 \mathrm{H}_2 \mathrm{O} \longrightarrow 3 \mathrm{Ca}(\mathrm{OH})_2+2 \mathrm{NH}_3 \\
& \text { So, the product } A \text { is }=\mathrm{Ca}_3 \mathrm{~N}_2 \\
& \text { and the product } B \text { is }=\mathrm{NH}_3 \text { gas. }
\end{aligned}
$$
$$
\begin{aligned}
& \mathrm{Ca}_3 \mathrm{~N}_2+6 \mathrm{H}_2 \mathrm{O} \longrightarrow 3 \mathrm{Ca}(\mathrm{OH})_2+2 \mathrm{NH}_3 \\
& \text { So, the product } A \text { is }=\mathrm{Ca}_3 \mathrm{~N}_2 \\
& \text { and the product } B \text { is }=\mathrm{NH}_3 \text { gas. }
\end{aligned}
$$
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