Glucose and fructose consists of aldehydic and ketonic functional groups respectively, yet fehlings reagent cannot be used to distinguish them, why?

Explanation

To understand why Fehling's reagent cannot be used to distinguish between glucose and fructose, we can break down the explanation into clear steps:

### Step 1: Identify the Functional Groups
- **Glucose** contains an **aldehyde** functional group (–CHO).
- **Fructose** contains a **ketone** functional group (–C=O).

### Step 2: Understand Fehling's Reagent
- Fehling's reagent is a mixture of **copper(II) sulfate** (CuSO₄) and **sodium potassium tartrate** in an alkaline solution.
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