MCAT Question of the Day
    •

    Q:

    		 Cyclic carbohydrates can be reducing sugars only if:
    		 

    A

    		 they have a free -H group.

    B

    		 they have a free aldehyde or ketone group.

    C

    		 they are in an α linkage.

    D

    		 they are disaccharides.



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