Observe the following two reaction of benzene. A) C_6H_6 + CH_3Cl underset(K_1)overset(AlCl_3)to C_6H_5CH_3 B) C_6H_5D + CH_3Cl underset(K_2)overset(AlCl_3)to C_6H_5CH_3 The relation between rate constant of the two reactions will be.

Observe the following two reaction of benzene. A) C_6H_6 + CH_3Cl und

1.	Observe the following two reaction of benzene. A) C_6H_6 + CH_3Cl underset(K_1)overset(AlCl_3)to C_6H_5CH_3 B) C_6H_5D + CH_3Cl underset(K_2)overset(AlCl_3)to C_6H_5CH_3 The relation between rate constant of the two reactions will be.
Answer» `K_1 GT K_2` `K_2 gt K_1` `K_1 = K_2` Not definite Solution :Electrophilic SUBSTITUTION reactions invovled two STEPS , cleavage of the `C-H or C-D` step (fast step) , which being fast does not effect the RATE of reaction .