Q50 of 71 Page 209

How do you explain the presence of an aldehydic group in a glucose molecule?


The presence of a carbonyl group in a glucose molecule can be confirmed by treating glucose with hydroxylamine to give a monoxime. It can also be treated with hydrogen cyanide to give cyanohydrin. To deduce that the carbonyl group is an aldehyde, glucose can be treated with bromine water, which undergoes mild oxidation to give the carboxylic acid gluconic acid, which confirms the presence of an aldehyde group.


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 49

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Which moieties of nucleosides are involved in the formation of phosphodiester linkages present in dinucleotides? What does the word di-ester in the name of linkage indicate? Which acid is involved in the formation of this linkage?

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