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Optical Activity

5. Chirality / Optical Activity / Problem 2

Determine which of the given isomers of butane-2,3-diol is optically inactive. Justify your answer.

A

Isomer (a) is optically inactive due to the presence of a plane of symmetry.

B

Isomer (b) is optically inactive due to the presence of a plane of symmetry.

C

Isomer (b) is optically inactive due to the absence of a chiral center.

D

Isomer (a) is optically inactive due to the absence of a chiral center.

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