1.

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

Answer»

`C_2H_5FgtC_2H_5ClgtC_2H_5BrgtC_2H_5I`
`C_2H_5IgtC_2H_5BrgtC_2H_5ClgtC_2H_5F`
`C_2H_5IgtC_2H_5ClgtC_2H_5BrgtC_2H_5F`
`C_2H_5FgtC_2H_5IgtC_2H_5BrgtC_2H_5Cl`

ANSWER :B


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