Which of the following is a ketohexose sugar?

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(C) ketohexose is a monosaccharide containing six carbon atoms and a ketone functional group.Glucose and Galactose are aldohexoses,meaning they contai

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Fructose

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(C) ketohexose is a monosaccharide containing six carbon atoms and a ketone functional group.Glucose and Galactose are aldohexoses,meaning they contain six carbon atoms and an aldehyde functional group.Ribose is an aldopentose,containing five carbon atoms and an aldehyde functional group.Fructose is a ketohexose,as it contains six carbon atoms and a ketone group at the $C-2$ position.Therefore,the correct option is $C$.

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