Distinction between pairs of compounds
Pentanal `(CH_(3)CH_(2)CH_(2)CH_(2)CHO)` and diethyl ketone `(CH_(3)CH_(2)COCH_(2)CH_(3))`
(a) Fehling Solution test.
Tollens' reagent Test.

Explanation

To distinguish between pentanal (CH₃CH₂CH₂CH₂CHO) and diethyl ketone (CH₃CH₂COCH₂CH₃) using Fehling's solution and Tollens' reagent, we can follow these steps:

### Step 1: Understanding the Compounds
- **Pentanal** is an aldehyde with the structure CH₃CH₂CH₂CH₂CHO.
- **Diethyl ketone** is a ketone with the structure CH₃CH₂COCH₂CH₃.

### Step 2: Fehling's Solution Test
- **Fehling's solution** is a blue solution containing copper(II) ions (Cu²⁺) in a basic medium.
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