Explain addition of HBr to Propene with the ionic mechanism

Explanation

`CH _(3) - CH = CH _(2) + HBr to CH _(3) - underset (Br) underset(|) (CH) - CH _(3) ` (2- bromo propoane) Electrophilic additon mechanism: (Ionic Mechanism)
(Step (i) : Formation of carbonium ion
`HBr to H ^(+) + Br ^(o+)`
`CH _(3) - CH = CH _(2) + H ^(+) to underset("Less stable") (CH_(3)- CH _(2)) - overset(o+) (CH _(2)) + underset("More stable") (CH _(3) - overset(o+ ) (CH))- CH _(3)`
Step (ii) : Stable carbonium ion is attacked by `Br ^(o+)`