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Which of the following is not a property of nitrogen oxides?

Option: 1

They are highly reactive.


Option: 2

They are toxic.


Option: 3

They are colorless.


Option: 4

They are non-flammable.


Answers (1)

best_answer

Correct Option D 

The correct answer is (D) They are non-flammable. Nitrogen oxides are highly reactive, toxic, and colorless. They are highly reactive because they have unpaired electrons in their molecular orbitals, which make them highly reactive. They are toxic because they can cause respiratory problems, especially nitrogen dioxide. They are colorless because they do not absorb visible light. However, they are not non-flammable, as some nitrogen oxides such as nitrogen dioxide \mathrm{\left ( NO_{2} \right )} are combustible. Hence option D is the correct answer.

Option (A) is incorrect because nitrogen oxides are highly reactive. They are highly reactive because they have unpaired electrons in their molecular orbitals, which make them highly reactive.Hence option A is incorrect.

Option (B) is incorrect because nitrogen oxides are toxic. They are toxic because they can cause respiratory problems, especially nitrogen dioxide \mathrm{\left ( NO_{2} \right )}.  Hence option B is incorrect.

Option (C) is incorrect because nitrogen oxides are colorless. They are colorless because they do not absorb visible light.  Hence option C is incorrect.

 

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vishal kumar

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