Chemical reaction ge major product??

The major product is 2-methylbutan-2-ol (or 2-methyl-2-butanol).
CH3-CH(CH3)OH-CH2-CH3.

The minor product is 2-methylbutan-1-ol (or 2-methyl-1-butanol).
CH2OH-CH(CH3)-CH2-CH3

-H atom (less electronegative) and -OH group (more electronegative due to O) are added to the two bonded atoms of the C=C double bond.

You can predict the major product by Markownikoff''s rule : In electrophilic addition of alkene, the more electronegative atom or group adds to the carbon atom bound to more alkyl groups.

Otherwise, you can outline the mechanism of the reaction, and determine the major product by the fact that the carbocation at C-2 (tertiary carbocation) is more stable than the carbocation at C-1 (primary carbocation).

起加成反應
出2個product
major:2-甲基-丁-1-醇
另外一個係2-甲基-丁-2-醇