2,3 -dibromobutane can be converted to 2 -butyne in two-step reaction using

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2,3 -dibromobutane can be converted to 2 -butyne in two-step reaction using

ChemistryHydrocarbonsKVPYKVPY 2016 (SA)

Options:

A (i) $\mathrm{HCl}$ and (ii) $\mathrm{NaH}$
B (i) alcoholic $\mathrm{KOH}$ and (ii) $\mathrm{Na} \mathrm{NH}_{2}$
C (i) $\mathrm{Na}$ and (ii) $\mathrm{NaOH}$
D (i) $\mathrm{Br}_{2}$ and (ii) $\mathrm{NaH}$

Solution:

1347 Upvotes Verified Answer

The correct answer is: (i) alcoholic $\mathrm{KOH}$ and (ii) $\mathrm{Na} \mathrm{NH}_{2}$

This is example of Dehydrohalogenation

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