Assertion :D-glucose is dextrorotatory whereas L-glucose is laevorotatory. Reason: D-compounds are always dextro and L-compounds are always laevorotatory.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is D Both Assertion and Reason are incorrect
Both assertion and reasons are incorrect because D and L represents configuration of 5th Chiral carbon, both D and L configuration can have either d, i.e. (+) dextrorotatory or l, i.e. (-) laevorotatory.

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Assertion :D-glucose is dextrorotatory whereas L-glucose is laevorotatory. Reason: D-compounds are always dextro and L-compounds are always laevorotatory.

The correct option is D Both Assertion and Reason are incorrectBoth assertion and reasons are incorrect because D and L represents configuration of 5th Chiral carbon, both D and L configuration can have either d, i.e. (+) dextrorotatory or l, i.e. (-) laevorotatory.

The correct option is D Both Assertion and Reason are incorrect
Both assertion and reasons are incorrect because D and L represents configuration of 5th Chiral carbon, both D and L configuration can have either d, i.e. (+) dextrorotatory or l, i.e. (-) laevorotatory.