`CH_(3)-CHCI-CH_(2)-CH_(3)` has a chiral centre. Which one of the following represents its `R` configuration?

Options

A. `H_(3) C -overset(C_(2)H_(5))overset(|) underset(H)underset(|)( C) - Cl`
B. `H-overset(C_(2) H_(5))overset(|)underset(Cl)underset(|)( C) - CH_(3)`
C. `Cl-overset(C_(2) H_(5)) overset(|)underset(H)underset(|)( C) - CH_(3)`
D. `H-overset(CH_(3))overset(|)underset(C_(2) H_(5))underset(|)( C)- Cl`

Answer

C

Explanation

According to sequence Rule, the priority order are as under
`underset((1))(Cl) - underset((2))(C_(2) H_(5)) - underset((3))(CH_(3)) - underset((4))(H)` , So in R configuration