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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 

(A) (i) HCl and (ii) NaH 

(B) (i) alcoholic KOH and (ii) Na NH2 

(C) (i) Na and (ii) NaOH (D) (i) Br2 and (ii) NaH 

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Correct Option :- (B) (i) alcoholic KOH and (ii) Na NH2

Explanation :-

This is example of Dehydrohalogenation 

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