Which of the following does not give silver mirror test with Tollen’s reagent?

Sucrose

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Glucose

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Fructose

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Lactose

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Solution

The correct option is A Sucrose
Silver mirror test with Tollen's reagent is given by the molecule which contains aldehyde group. But, sucrose has no aldehyde group and rest of the molecule have aldehyde group. Hence, glucose, fructose and lactose, each gives silver mirror test except sucrose.

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