MCQ
On heating $CHC{l_3}$ with aq. $NaOH$ , the product is
- A$C{H_3}COONa$
- ✓$HCOONa$
- CSodium oxalate
- D$C{H_3}OH$

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$A$. A liquid evaporates to vapour.
$B$. Temperature of a crystalline solid lowered from $130 \mathrm{~K}$ to $0 \mathrm{~K}$.
$C$. $2 \mathrm{NaHCO}_{3(\mathrm{~s})} \rightarrow \mathrm{Na}_2 \mathrm{CO}_{3(\mathrm{~s})}+\mathrm{CO}_{2(\mathrm{~g})}+\mathrm{H}_2 \mathrm{O}_{(\mathrm{g})}$
$D$. $\mathrm{Cl}_{2(g)} \rightarrow 2 \mathrm{Cl}_{(g)}$
Choose the correct answer from the options given below:
($en=$ ethylenediamine)