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Solution


Q.

Sugar which does not give reddish brown precipitate with Fehling’s reagent, is:              [2024]
1 Sucrose  
2 Lactose  
3 Glucose  
4 Maltose  

Ans.

(1)

Sucrose does not have an aldehydic or ketonic group. Hence sucrose is a non-reducing sugar and does not give reddish brown precipitate with Fehling’s reagent. All monosaccharides (such as glucose) are reducing sugars.