explain-1

simple Markovnikov addition (carbocation mech)

consider it as HO⁺X^-

HO goes to carbon with more hydrogens

HO will go with the carbon of the second bond with more hydrogen out of the two.
X will go with the carbon of the second bond with least hydrogen out of the two.

HOX ionises as OH- and X+ when X+ acts as electrophile and then nucleophilic attack takes place onn the carbocation formed.

well well that's interesting .....

which halide is more electronegative than O other than F .???

yeah u r right ,srinath,but i remember reading somewhere before (i think in morrisson-boyd) that HOCl ionizes to HO⁺ when reacted with an alkene,think it is because of the vacant d lobes of chlorine that can overlap with the lone pair