Question
Chemistry Question on Haloalkanes and Haloarenes
The two structures written below represent 
A
(A) pair of diastereomers
B
(B) pair of enantiomers
C
(C) same molecule
D
(D) both are optically inactive
Answer
(B) pair of enantiomers
Explanation
Solution
Explanation:
I & II are same Fischer projection because 180∘ rotation doesn't change configuration.