In the presence of peroxide, hydrogen chloride and hydrogen iodide do not give anti-Markovnikov's addition to alkenes because:

Options

A. Both are highly ionic
B. One is oxidising and the other is reducing
C. One of the steps is endothermic in both the cases
D. All the steps are exothermic in both the cases

Answer

C

Explanation

`H - Cl` bonds are stronger than `H- Br` , so these bonds are not cleaved by the free radical, whereas the `H- I` bond is weaker and iodine free radicals combine to form iodine molecules instead of adding to the double bond.