1.

Arrange the following alkyl halides in order of dehydrohalogenation, C_2H_5I,C_2H_5Cl,C_2H_5Br,C_2H_5F

Answer»

`C_2H_5F GT C_2H_5Cl gt C_2H_5Br gt C_2H_5I`
`C_2H_5I gt C_2H_5Br gt C_2H_5Cl gt C_2H_5F`
`C_2H_5I gt C_2H_5Cl gt C_2H_5Br gt C_2H_5F`
`C_2H_5F gt C_2H_5I gt C_2H_5Br gt C_2H_5Cl`

ANSWER :B


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