The carbohydrate which does not react with ammoniacal \( AgNO_3 \) solution is:
Show Hint
- Sucrose
- Maltose
- Lactose
- Fructose
The Correct Option is A
Solution and Explanation
Step 1: Understanding Tollen’s Test Ammoniacal silver nitrate (\( AgNO_3 \)) is used in Tollen’s test to detect reducing sugars. A reducing sugar has a free aldehyde or ketone group that can reduce \( Ag^+ \) to metallic silver.
Step 2: Identifying Reducing and Non-Reducing Sugars - Sucrose is a non-reducing sugar because its glycosidic bond prevents the free aldehyde or ketone group from participating in the reaction. - Maltose, lactose, and fructose are reducing sugars, which means they react with ammoniacal \( AgNO_3 \).
Step 3: Conclusion Since sucrose does not react with Tollen’s reagent, it is the correct answer.
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