JEE Main Chemistry question

The metal used for the de-bromination reaction of 1,2-dibromoethane is

(A)Na
(B)ZnCorrect
(C)Mg
(D)Li

Answer: (B)

Solution

Zinc dust removes two halogens from adjacent carbons of a vicinal dihalide to regenerate the alkene, with formation of zinc halide: BrCH_2-CH_2Br + Zn \xrightarrow{\Delta} CH_2=CH_2 + ZnBr_2. This

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Question ID VK-148043