Ethylene dibromide (1,2-dibromoethane) on hea | vedclass

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Question

(C) The reaction of $1,2-$dibromoethane $(CH_2Br-CH_2Br)$ with metallic sodium $(Na)$ in the presence of dry ether is a Wurtz-type coupling reaction.

Vedclass · Accepted Answer

$2-$butene

Vedclass · Answer

(C) The reaction of $1,2-$dibromoethane $(CH_2Br-CH_2Br)$ with metallic sodium $(Na)$ in the presence of dry ether is a Wurtz-type coupling reaction. However,the provided image shows the reaction of $1,1-$dibromoethane $(CH_3-CHBr_2)$ with sodium,which leads to the formation of $2-$butene $(CH_3-CH=CH-CH_3)$. If the question refers to $1,2-$dibromoethane $(BrCH_2-CH_2Br)$,the reaction with $Na$ would yield ethene $(CH_2=CH_2)$ via elimination. Given the options and the provided solution image,the question likely intended to refer to $1,1-$dibromoethane. Based on the provided solution image: $2CH_3CHBr_2 + 4Na \xrightarrow{	ext{ether}, \Delta} CH_3-CH=CH-CH_3 + 4NaBr$ Thus,the product is $2-$butene.

Ethylene dibromide ($1$,$2$-dibromoethane) on heating with metallic sodium in ether solution yields:

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