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On heating glucose with Fehling solution, we get a precipitate whose colour is
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Correct option is B
Fehling's A is a solution containing copper(II) sulphate, which is blue color. Fehling's B is a clear liquid consisting of potassium sodium tartrate (Rochelle salt) and a strong alkali like NaOH,KOH.,Etc, usually sodium hydroxide. During the test solutions A and B are prepared individually and stored. Just before the test they are mixed. Aldehyde give red ppt due to the formation of Cu2O, and ketones do not respond.
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