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Question

C2H5OH and CH3−O−CH3 have same molecular weight. But ethyl alcohol boils at higher temp. why?

A

ether functional group

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B

Inter molecular hydrogen bonding

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C

Intra molecular hydrogen bonding

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D

Presence of O

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Solution

The correct option is B

Inter molecular hydrogen bonding


C2H5OH can form H-bonding like



Because H is attached to electronegative O
However, in the ether, all H are attached to C and hence, no room for H-bonding

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