Write structures of all the alkenes which on hydrogenation give 2-methylbutane.

Explanation

The product is ` underset("2-Methylbutane")(overset(1)(CH_(3))- overset(2)(underset(CH_(3))underset(|)CH)-overset(3)CH_(2)-overset(4)CH_(3))`
The different alkenes which give the product on hydrogenation are given below:
`underset("3-Methylbut-l-ene")(CH_(3)-underset(CH_(3))underset(|)CH-CH=CH_(2))`
`underset("2-Methylbut-2-ene")(CH_(3)-underset(CH_(3))underset(|)C-CH-CH_(3))`
`underset("2-Methylbut-l-ene")(CH_(2)=underset(CH_(3))underset(|)C-CH_(2)-CH_(3)`