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JEE Main Chemistry question

ChemistryAldehydes, Ketones and Carboxylic AcidsJEE Main

Consider all possible optical isomers of glucose individually. How many moles of periodic acid will be consumed in total by the reaction of one mole of each optical isomer with it?

Answer: 80

Solution

Every optical isomer of glucose (regardless of its particular stereochemical configuration) has the same connectivity — an aldehyde, four contiguous groups and a terminal — so each one consumes the same number of moles

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Question ID VK-151243