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Give reasons as the evidence in support of cyclic structure of glucose. |
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Answer» Correct Answer - (i) Though glucose has aldehyde group, it does not give `2,4-DNP` test (ii) It does not form hydrogen sulphite addition product (iii) The pentacetate of glucose does not react with hydroxyl amine. Amino facts indicate the absence of free `-CHO` group in glucose. (i) Though glucose has aldehyde group, it does not give `2,4-DNP` test (ii) It does not form hydrogen sulphite addition product (iii) The pentacetate of glucose does not react with hydroxyl amine. Amino facts indicate the absence of free `-CHO` group in glucose. |
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