Hydroboration -Oxidation of `CH_(3)CH = CH_(2)` produces

The treatment of CH_(3)MgX with CH_(3)-=CH produces

A : CH_(3) - underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C)-CH=CH_(2) on hydroboration oxidation gives CH_(3)-underset(OH)underset(|)overset(CH_(3))overset(|)(C)-underset(CH_(3))underset(|)(CH)-CH_(3) as major product . R : It involves the formation of carbocation so undergoes rearrangement .

A : CH_(3) - underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C)-CH=CH_(2) on hydroboration oxidation gives CH_(3)-underset(OH)underset(|)overset(CH_(3))overset(|)(C)-underset(CH_(3))underset(|)(CH)-CH_(3) as major product . R : It involves the formation of carbocation so undergoes rearrangement .

The best oxidising agent for oxidation of CH_(3)-CH=CH-CHO to CH_(3)-CH=CH-COOH is __________.

The reactionof CH_(3)CH=CH-CH_(2)Cl with alcoholic KCN produces

An alcohol on oxidation is found to give CH_(3)COOH and CH_(3)CH(OH)CH_(2)CH_(2)CH_(3) The structure of the alcohol is :