Compare the basic strengths of ortho, meta and para isomers of nitroaniline and predict the decreasing order of basicity

Explanation

To compare the basic strengths of ortho, meta, and para isomers of nitroaniline and predict the decreasing order of basicity, we need to analyze the effects of the nitro group (-NO2) on the amino group (-NH2) in each isomer.

### Step-by-Step Solution:

1. **Identify the Isomers**:
- **Ortho-nitroaniline**: The -NO2 group is attached to the benzene ring adjacent to the -NH2 group.
- **Meta-nitroaniline**: The -NO2 group is attached to the benzene ring one carbon away from the -NH2 group.
- **Para-nitroaniline**: The -NO2 group is attached to the benzene ring directly opposite the -NH2 group.
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