MCQ
Which compound on electrolysis produces $H_2$ gas at both electrode?
- A$MgH_2$ (molten)
- B$HCl$ (aq)
- C$NaH$ (molten)
- ✓$CaH_2$ (aq)
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| List $I$ Oxide | List $II$ Type of Bond |
| $A$ $N _2 O _4$ | $I$. $1 N = O$ bond |
| $B$ $NO _2$ | $II$. $1 N - O - N$ bond |
| $C$ $N _2 O _5$ | $III$. $1 N - N$ bond |
| $D$ $N _2 O$ | $IV$. $1 N = N / N \equiv N$ bond |
Choose the correct answer from the options given below:
[Given : ${E^0}_{Zn/Z{n^{ + 2}}} = 0.76\,V,$
${E^0}_{Cu/C{u^{ + 2}}} = - 0.34\,V,\,\frac{{2.303\,RT}}{F} = 0.06,\log 2 = 0.30]$
Select the incorrect option is
${C_2}{H_5}ONa + I{C_2}{H_5}\xrightarrow{{}}{C_2}{H_5}O{C_2}{H_5} + NaI$