MCQ
When a solution of sodium chloride containing ethyl alcohol is electrolysed, it forms
- AEthyl alcohol
- BChloral
- ✓Chloroform
- DAcetaldehyde
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${C_{(gr)}} + {O_{2(g)}} \to C{O_{2(g)}}\,\,\,\Delta H = x\,kJ/mol$
${C_{(gr)}} + \frac{1}{2}{O_{2(g)}} \to C{O_{(g)}}\,\,\,\Delta H = y\,kJ/mol$
$C{O_{(g)}} + \frac{1}{2}{O_{2(g)}} \to C{O_2}_{(g)}\,\,\,\Delta H = z\,kJ/mol$
$\mathop {CH_3^ + }\limits_{\rm{I}} $ $\mathop {{H_3}{O^ + }}\limits_{{\rm{II}}} $ $\mathop {N{H_3}}\limits_{{\rm{III}}} $ $\mathop {CH_3^ - }\limits_{{\rm{IV}}} $

$I$ . $Zn +$ conc. $HNO_3$ (hot) $\to Zn(NO_3)_2 + X + H_2O$
$II$. $Zn +$ dil. $HNO_3$ (cold) $\to Zn(NO_3)_2 + Y + H_2O$
Compounds $X$ and $Y$ are respectively