Question

Select the optically inactive compound among the following:

• A.
• B.
• C.
• D. None of the above

Answer 1

The correct option is C

Biphenyl Systems show optical activity when the
following conditions are satisfied:

• Each ring should have 2 different ortho substituting groups.

In c both ring have 2 same ortho substituting groups thus it is optically inactive.
In a each ring have 2 different ortho substituting groups thus it is optically active.
In b each ring have 2 different ortho substituting groups thus it is optically active.