Question

`CH_(3)-CHCI-CH_(2)-CH_(3)` has a chiral centre. Which one of the following represents its `R` configuration?
A. `{:(" "C_(2)H_(5)),(" |"),(H_(3)C-C-Cl),(" |"),(" "H),():}`
B. `{:(" "C_(2)H_(5)),(" |"),(H-C-CH_(3)),(" |"),(" "Cl),():}`
C. `{:(" "C_(2)H_(5)),(" |"),(Cl-C-CH_(3)),(" |"),(" "H),():}`
D. `{:(" "CH_(3)),(" |"),(H-C-Cl),(" |"),(" "C_(2)H_(5)),():}`

Answer 1

Correct Answer - C
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