Test that can distinguish between monosaccharides and disaccharides is

Benedict's test

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Barfoed's test

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Tollen's test

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Nylander's test

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Solution

The correct option is B Barfoed's test
Carbohydrates are polyhydroxy aldehydes and ketones. Carbohydrates may have an aldehyde group (aldoses) or ketose group. Barfoed's test distinguishes monosaccharides from disaccharides. In this test, copper acetate in dilute acid is reduced in 30 seconds by monosaccharides whereas disaccharides take several minutes.

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