ABC26OR0009 · General Organic Chemistry
Subject: Organic Chemistry · Chapter: General Organic Chemistry · Topic: Stereochemistry R S E Z · Exam: CSIR-NET JUNE 2011 · Marks: 2 · Difficulty: Medium
Among A-C, the compounds which can exhibit optical activity are 
(a)A, B and C
(b)A and B only
(c)A and C only
(d)B and C only
Answer
Answer (as printed): C
Explanation
Optically active compounds lack plane of symmetry. Compound B contains plane of symmetry, hence it is optically inactive. Viewing (B) in fischer projection gives more clarity about the plane of symmetry. A plane of symmetry passes through C2-C3 bond.
Explanation as extracted from the printed page; notation may be imperfect.