Question

reaction of 1-methylcyclohexene with HI forms 1-methyl-1-iodocyclohexane and not (iodomethyl) cyclohexane. reason out!

Answer 1

Reaction of 1-methylcyclohexene with HI form 1-methyl-1-iodocyclohexane because

First of all it is an electrophilic substitution reaction(H+ behave as an electrophile)

It attacks the double bond and forms carbonation

And formation of this take place according to markonikove's rule.

(This rule states that H+(protonic part) gets attached to that carbon which has more no. of H atoms).

And then iodide ion gets attached to major carbonation and forms 1-methyl-1-iodocyclohexane not the other product.