Why antimarkonikov rule is applicable to HBr only and not HCl or HI?

1.	Why antimarkonikov rule is applicable to HBr only and not HCl or HI?
Answer» Hcl has strong force of attraction bw them so it doesn\'t donate chlorine to attach to organic compound similarly Hl forms free radical where l instead of combing to organic compound it combines with another l to form iodine molecule

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