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Question

The optical rotation of an optically active compounds is:

A
directly proportional to the length of the polarimeter tube only.
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B
directly proportional to the molar concentration of the compound.
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C
independent of the length of the polarimeter tube and concentration of the compound,
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D
directly proportional to both the length of the polarimeter tube and molar concentration of the compound
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Solution

The correct option is D directly proportional to the molar concentration of the compound.
The optical rotation of an optically active compounds is directly proportional to the molar concentration of the
compound.
Hence, the option (B) is correct.

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