Arrange o-nitro, p-nitro, m-nitró benzoic acids in increasing acid strength.

Explanation

To determine the increasing acid strength of o-nitro, p-nitro, and m-nitro benzoic acids, we need to analyze the effects of the nitro group on the acidity of benzoic acid. Here’s a step-by-step breakdown of the solution:

### Step 1: Draw the Structures
- **o-Nitrobenzoic Acid**: The nitro group (-NO2) is attached to the ortho position of the carboxylic acid (-COOH).
- **m-Nitrobenzoic Acid**: The nitro group is attached to the meta position of the carboxylic acid.
- **p-Nitrobenzoic Acid**: The nitro group is attached to the para position of the carboxylic acid.

### Step 2: Understand the Effects of the Nitro Group
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