For the reaction, C2H5OH+HXZnX2⟶C2H5X, the order of reactivity is:
A
HI>HCl>HBr
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B
HI>HBr>HCl
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C
HCl>HBr>HI
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D
HBr>HI>HCl
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Solution
The correct option is BHI>HBr>HCl Because the reaction follows SN1 mechanism and hence the halide formed is stable when it is of a larger size and size increases down the group. I>Br>Cl