The increasing order of reduction of alkyl halides with zinc and dilut

1.	The increasing order of reduction of alkyl halides with zinc and dilute HCl is …..
Answer» `R-CL LT R-I lt R-Br` `R-Cl lt R-Br lt R-I` `R-I lt R-Br lt R-Cl` `R-Br lt R-I lt R-Cl` Solution :The REACTIVITY with alkane is `F_(2) gt Cl_(2) gt Br_(2) gt I_(2)`. Hence reduction of alkyl halide with Zn/HCl follow reverse ORDER. The reactivity of reduction increases as the bond strength of reduction increases as the bond strength of C-X decrease. It depends on the size of X. As the size of X increases, bond strength decreases ad reactivity increases.

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