How many chiral compounds are possible on monochlorination of 2-methyl butane

Options

A. 2
B. 4
C. 6
D. 8

Answer

A

Explanation

`CH_(3)-underset(CH_(3))underset(|)CHCH_(2)CH_(3)` shows four isomers monochlorination as:
`underset("(i) Achiral")(CH_(3)underset(CH_(3))underset(|)CH-CH_(2)CH_(2)Cl)` `underset("(ii) Chiral")(CH_(3) underset(CH_(3))underset(|)CHunderset(Cl)underset(|)CHCH_(3))` `underset("(iii) Achiral")(CH_(3)underset(CH_(3))underset(|)overset(Cl)overset(|)C CH_(2)CH_(3))` `underset("(iv) Chiral")(CH_(3)underset(CH_(2)Cl)underset(|)(CH_(2))CH_(3))`
Out of four isomers, only 2 are chiral.