STATEMENT-1: Meso-tartaric acid is optically inactive.
STATEMENT-2: It is due to the external compensation of rotation of plane-polarized light.

STATEMENT-1 is True, STATEMENT-2 is True; STATEMENT-2 is a correct explanation for STATEMENT-1

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STATEMENT-1 is True, STATEMENT-2 is True; STATEMENT-2 is NOT a correct explanation for STATEMENT-1

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STATEMENT-1 is True, STATEMENT-2 is False

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STATEMENT-1 is False, STATEMENT-2 is True

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Solution

The correct option is C STATEMENT-1 is True, STATEMENT-2 is False
Tartaric acid has a plane of symmetry and is achiral. Tartaric acid is optically inactive because of internal compensation that means one half of the
molecule is neutralized by another. It is due to molecular symmetry not because of external compensation.
Therefore statement-1 is true and statement-2 is false.
Hence the correct option is C.

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STATEMENT-1: Meso-tartaric acid is optically inactive.STATEMENT-2: It is due to the external compensation of rotation of plane-polarized light.

STATEMENT-1: Meso-tartaric acid is optically inactive.
STATEMENT-2: It is due to the external compensation of rotation of plane-polarized light.