MCQ
$1, 2-$dibromoethane when heated with alcoholic potash gives
- AEthane
- ✓Acetylene
- CEthylene
- DMethane
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(Molar mass of $\mathrm{H}_3 \mathrm{PO}_4=98 \mathrm{~g} \mathrm{~mol}^{-1}$ )
Reason : $sp$ hybridised carbon atoms of acetylene are considerably electronegative.
