Which of the following compounds is not chiral?

Options

A. `2-`Chloropentane
B. `1-`Chloro`-2-`methy`1`pentane
C. `3-`Chloro`-2-`methy`1`pentane
D. `1-`Chloropentane

Answer

D

Explanation

If the molecule of a compound contains just one asymmetric `C` atom, then it is always chiral.
`overset(**)underset(2-"Chloropentane")(CH_(3)underset(CI)underset(|)CHCH_(2))CH_(2)CH_(3)`
`overset(H)overset(|**)underset(1-"Chloro-2-methy1pentane")(CICH_(2)-underset(CH_(3))underset(|)C-CH_(2)CH_(2))CH_(3)`
`underset(3-"Chloro-2-methy1pentane")(CH_(3)underset(CH_(3))underset(|)(CHunderset(**)overset(CI)overset(|)CH)CH_(2)CH_(3))`
Compound `1-`chloropentane is achiral because its moelcule has no chiral carbon atom nut has a plane of symmetry