MHT CET 2022 Chemistry question

Which carbon atom of glucose, numbered from C-1 to C-6 converts it's functional group to -COOH group when heated with water?

(A)C-6
(B)C-1Correct
(C)C-2
(D)C-4

Answer: (B)

Solution

In open-chain glucose, C-1 is the aldehyde carbon (), C-2 to C-5 carry secondary -OH groups and C-6 is the primary alcohol carbon (). Bromine water is a mild oxidising agent that oxidises only the aldehyde group to a carboxylic acid group, converting glucose into gluconic acid; the -OH

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Question ID VK-093976