Identify all the possible monochloro structural isomers expected to be formed on free radical monochlorination of `(CH_(3))_(2)CHCH_(2)CH_(3)`.

Explanation

There are four different types of hydrogen atoms. Replacement of these hydrogen atoms will give the following isomers
(i) `underset("1-Chloro-3-methylbutane")((CH_(3))_(2)CHCH_(2)CH_(2)Cl)` (ii) `underset("2-Chloro-3-methylbutane")((CH_(3))_(2)CH underset(Cl)underset(|)CHCH_(3))` (iii) `underset("2-Chloro-2-methylbutane")((CH_(3))_(2)underset(Cl)underset(|)C CH_(2)CH_(3))` (iv) `underset("1-Chloro-2-methylbutane")(ClCH_(2)underset(CH_(3))underset(|)CHCH_(2)CH_(3))`