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Question

Which of the following is a ketose sugar?

A
Fructose
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B
Glucose
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C
Galactose
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D
None of the above
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Solution

The correct option is A Fructose
Fructose is a ketose sugar because it has a ketone group (C=O) in its structure. It is also the sweetest sugar. Glucose and galactose are aldose sugars since they have an aldehyde group in their structures (-CHO).

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