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 | | The number of carbon atoms in the sugar generally ranges from three to seven, designated by the term triose (three carbons), tetrose (four carbons), pentose (five carbons), hexose (six carbons), and heptose (seven carbons). |
 | | Most ketones have the ketone on C2, the second carbon of the chain. |
 | | aldoses, ketoses, aldohexose, ketohexose, aldotetrose, ketotetrose, triose, tetrose, pentose, hexose, heptose |
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