Which of the following compounds is not chiral

Options

A. `DCH_(2) CH_(2) CH_(2) Cl`
B. `CH_(3) CH_(2) CHDCl`
C. `CH_(3) CHDCH_(2) CH_(2) Cl`
D. `CH_(3) CHCl CH_(2) D`

Answer

A

Explanation

`DCH_(2) - CH_(2) - CH_(2) - Cl` others are chiral
`CH_(3) - CH_(2) - overset(H)overset(|)underset(Cl) underset(|) ( C^(**)) - D , CH_(3) - overset(H)overset(|) underset(D)underset(|)( C^(**))- CH_(2) - CH_(2) - Cl`
`CH_(3) - overset(H)overset(|)underset(Cl) underset(|)( C^(**)) -CH_(2) D`