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Fructose is commonly known as ______

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in Chemistry – Class 12 by (188k points)
Fructose is commonly known as ______

(a) dextrose

(b) laevulose

(c) pyranose

(d) furanose

The question was asked during an internship interview.

My question is based upon Biomolecules Carbohydrates in chapter Biomolecules of Chemistry – Class 12

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Correct answer is (b) laevulose

The best explanation: Due to its laevorotatory behaviour, fructose is known as laevulose. On the other hand, glucose is known as dextrose for the opposite reason. Fructose can exist as furanose or pyranose depending on its state (free or combined).

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