When Prop-1-ene is treated with HCl in the presence of peroxide we get:
1-Chloropropane
When Prop-1-ene is treated with HCl in the presence of peroxide we get 1-Chloropropane.In the presence of peroxides, the reaction follows anti-Markovnikov's effect which states that the negative part of addendum goes to that carbon atom which has more number of H atoms.