O.Chem benedicts reagent question

[lndupu]

Hi, I'm new, but I kinda like this forums.

Here is my question, its from Princeton review CD:

When glucose reacts with Benedict's reagent, it is oxidized. Which of the following is the most likely product?
A) An alkane B) A carboxylate C) An acetal D) An epoxide

Sorry but what is the answer and what MCAT concept does it cover (I know its O.Chem but which concept in O.chem), so I can study it because I do not understand it at all.

Please and thank you.

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[sleepy425]

so benedict's reagent is basically Cu++. It tests for reducing sugars, so sugars that can reduce Cu++ to Cu+. That means that the sugar becomes oxidized. Glucose is an aldehyde, so oxidizing the aldehyde gives you a carboxylic acid, or a carboxylate.