MCQ
$1, 2-$Dichloroethene shows
- ✓Geometrical isomerism
- BOptical isomerism
- CRing-chain isomerism
- DResonance

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image$\mathop {\xrightarrow{{NaN{O_2}}}}\limits_{HCl} A\,\,\xrightarrow{{CuCN}}B\,\,\mathop {\xrightarrow{{{H_2}}}}\limits_{Ni} C\,\,\xrightarrow{{HN{O_2}}}D$