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Sugar which does not give reddish brown precipitate with Fehling's reagent is

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Sugar which does not give reddish brown precipitate with Fehling's reagent is

(1) Sucrose 

(2) Lactose 

(3) Glucose 

(4) Maltose

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1 Answer

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(1) Sucrose 

Sucrose do not contain hemiacetal group. Hence it does not give test with Fehling solution.

While all other give positive test with Fehling solution.

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