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Which pair of functional groups is commonly found in a typical carbohydrate molecule?

1. –CHO and –COOH
2. >C=O and –OH
3. –OH and –CHO
4. –OH and –COOH

Correct answer: >C=O and –OH

Solution

The correct option includes a carbonyl group (>C=O) and a hydroxyl group (–OH), which are essential components of carbohydrates, specifically in the structure of sugars where these functional groups contribute to their reactivity and properties.

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