Glyoxal on reacting with strong alkali gives

Glycol

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Glycollic acid

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Glucose

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Glycine

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Solution

The correct option is B Glycollic acid
The structure of glyoxal is

In glyoxal both aldehyde group lacks alpha hydrogen. Thus, they will undergo intramolecular cannizzaro reaction in presence of strong alkali in which one aldehyde group is oxidised to carboxylic acid and other is reduced to alcohol group.

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Similar questions

Which one of the following aldehyde gives Cannizzaro reaction when heated with strong alkali?

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