Assertion :Starch is the most important polysaccharide. Reason: It is made of long chain of a-D glucose units joined by $α$ -1, 4 linkages.

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 B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
Starch is a important storage homopolysaccharide made up of glucose units. it is found in plant storage organs like endosperm of cereals and tubers of potato. It is formed by joining together of glucose molecules by $α$ -1, 4 linkage.

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