MCQ
Catalyst $SnC{l_2}/HCl$ is used in
- ✓Stephen's reduction
- BCannizzaro reaction
- CClemmensen's reduction
- DRosenmund's reduction
$R - C \equiv N +2 H \stackrel{ SnCl _2 / HCl }{\longrightarrow} \underset{\text { alidine }}{ RCH }=\underset{\text { hydrochloride }}{ NH \cdot HCl } \stackrel{ H _2 O }{\longrightarrow} \underset{\text { aldehyde }}{ RCHO }+ NH _4 Cl$
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$Cu^{2+}_{(aq)} + e^- \rightarrow Cu^+_{(aq)}$ and $Cu^+_{(aq)} + e^- \rightarrow Cu_{(s)}$ are $+ 0.15\, V$ and $+ 0.50\, V$ respectively. The value of $E^o_{Cu^{2+}/Cu}$ will be ........ $V$