When nitrogen dioxide is bubbled through a solution of potassium permanganate, the solution turns colorless. Which of the following statements is true?

Question 3 options:

1) The test reveals that nitrogen dioxide is a colored gas.

2) The test reveals that nitrogen dioxide is chemically reactive.

3) Nitrogen dioxide dissolves in the solution of potassium nitrate to produce nitrogen monoxide.

4) The test reveals that nitrogen dioxide is a potential refrigerant.

5) Any gas bubbled through potassium permanganate solutions gives a colorless solution.

doesn't 2) make sense?

To determine which of the statements is true, we need to analyze the given information.

The statement says that when nitrogen dioxide is bubbled through a solution of potassium permanganate, the solution turns colorless.

To begin, we can eliminate option 1 because it is not mentioned in the statement that nitrogen dioxide is a colored gas.

Next, we can eliminate option 4 because the statement does not suggest anything about nitrogen dioxide being a potential refrigerant.

Now, let's consider option 5. It states that any gas bubbled through potassium permanganate solutions gives a colorless solution. However, we cannot simply conclude this based on a single example mentioned in the statement. Therefore, option 5 is also not true.

This leaves us with options 2 and 3.

Option 2 states that the test reveals that nitrogen dioxide is chemically reactive. Since the solution of potassium permanganate turns colorless when nitrogen dioxide is bubbled through it, this indicates a chemical reaction taking place. Therefore, option 2 is a plausible explanation.

Option 3 states that nitrogen dioxide dissolves in the solution of potassium nitrate to produce nitrogen monoxide. However, the statement does not explicitly mention the formation of potassium nitrate or nitrogen monoxide. Therefore, we cannot conclude that option 3 is true based solely on the given information.

In conclusion, the true statement is:
2) The test reveals that nitrogen dioxide is chemically reactive.