IsomerismHard
Question
Which of the following is optically inactive
Options
A.

B.

C.

D.

Solution

has no plane of symmetry or centre of symmetry. It is optically active.

has 3 chiral centres but it also has a plane of symmetry it is a meso compound and optically inactive.

has 3 chiral centres but no plane or centre of symmetry it will be optically active.

has no plane or centre of symmetry. It is optically active.
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