What is the oxidation state of O in NO2?A.0B.-4C.+2D.-2

The oxidation state of Oxygen (O) is typically -2. However, in the case of NO2 (Nitrogen Dioxide), the oxidation state of Nitrogen (N) is +4.

Here's the step-by-step process:

1. We know that the total charge of a neutral molecule like NO2 is 0.

2. If we let x be the oxidation state of N in NO2, then the sum of the oxidation states of N and the two O atoms is 0.

3. We can set up the equation: x + 2(-2) = 0 (since there are two O atoms each with an oxidation state of -2)

4. Solving for x gives us x = +4. This is the oxidation state of N in NO2.

5. Therefore, the oxidation state of O in NO2 remains -2.

So, the correct answer is D. -2.