Distinction between pairs of compounds
Acetaldehyde `(CH_(3)CHO)` and acetone `(CH_(3)COCH_(3))`

Explanation

To distinguish between acetaldehyde `(CH₃CHO)` and acetone `(CH₃COCH₃)`, we can perform specific chemical tests that highlight their different functional groups. Below is a step-by-step text solution:

### Step 1: Identify the Functional Groups
- **Acetaldehyde** is an aldehyde, characterized by the functional group `-CHO`.
- **Acetone** is a ketone, characterized by the functional group `-CO-` between two carbon atoms.

### Step 2: Perform the Tollen's Test (Silver Mirror Test)
- **Acetaldehyde** can give a positive result in Tollen's test because it is an aldehyde. When treated with Tollen's reagent (Ag(NH₃)₂⁺), it reduces the silver ions to metallic silver, forming a silver mirror on the test tube.
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