a. HCl attacks on double bond causing formation of a carbocation now C+ migrates (methyl shift) to form a stable tertiary C+ followed by addition of Cl- . b. In this there is no methyl shift because OH- is a very good neuclophile and doesn\'t give tym fr a methyl shift Solution a. HCl attacks on double bond causing formation of a carbocation now C+ migrates (methyl shift) to form a stable tertiary C+ followed by addition of Cl- . b. In this there is no methyl shift because OH- is a very good neuclophile and doesn\'t give tym fr a methyl shift.