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Question
Write the reaction that indicates the presence of -CHO group in glucose
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Solution
The oxidation of glucose with bromine water (which is a mild oxidizing agent) forms gluconic acid. This indicates presence of aldehyde group.

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| (I) | ![]() |
| (II) | ![]() |
| (III) | ![]() |
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(ii) \[\ce{Glucose ->[Ni/H2] [A] ->[Y eq of][(CH3CO)2O] Acetyl derivative}\]
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| List I | List II | ||
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| (C) | Glucose + acetic anhydride | (III) | Saccharic acid |
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