Which of the planning is incorrect about free radicals?

Options

A. `dotCH_3` is planar, while `dotCF_3` is pyramidal
B. Percentage 's' - character in C - H bond of `dotCH_3` is less than that in C - F bond of `dotCF_3` radical
C. Free radicals are paramagnetic in nature
D. Free radicals are highly reactive in nature

Explanation

To determine which statement about free radicals is incorrect, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Understanding Free Radicals**:
Free radicals are species that contain an unpaired electron, making them highly reactive. They can be formed from various organic and inorganic compounds.

2. **Analyzing the Options**:
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