Trichloroacetic acid is…………... acidic than acetic acid due to …………….effect.

Explanation

To solve the question "Trichloroacetic acid is __________ acidic than acetic acid due to __________ effect," we need to analyze the structures and the effects of the substituents on the acidity of the acids.

### Step-by-Step Solution:

1. **Identify the Structures**:
- **Trichloroacetic Acid**: The structure is represented as CCl₃COOH (where three chlorine atoms are attached to the carbon adjacent to the carboxyl group).
- **Acetic Acid**: The structure is represented as CH₃COOH (where a methyl group is attached to the carbon adjacent to the carboxyl group).

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