Which amine in each of the following pairs is a stronger base? Give reasons.
`CH_3 underset(NH_2) underset(|) (CH ) -CH_3 or CH_3 - underset(NH_2) underset(|) (CH ) - COOCH_3`

Explanation

To determine which amine in the given pairs is a stronger base, we need to analyze the structures and the effects of the substituents on the nitrogen atom.

### Step-by-Step Solution:

1. **Identify the Structures**:
- The first amine is **CH₃-NH₂ (isopropyl amine)**.
- The second amine is **CH₃-NH₂ (acetyl amine)** with a COOCH₃ group.

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