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  • Which of the following nitrogen oxides is the least toxic?Option: 1 Nitrogen monoxide  <s

Which of the following nitrogen oxides is the least toxic?

Option: 1

Nitrogen monoxide
 


Option: 2

Nitrogen dioxide 

 


Option: 3

Nitrogen trioxide 

 


Option: 4

Nitrous oxide 


Answers (1)

best_answer

Correct Option D

The correct answer is (D) Nitrous oxide. Nitrogen monoxide and nitrogen dioxide are both toxic, with\mathrm{\left ( NO_{2} \right )} being more toxic than \mathrm{\left ( NO\right )}. Nitrogen trioxide is also toxic and can cause respiratory problems. Nitrous oxide is the least toxic of all nitrogen oxides and is commonly used as an anesthetic. Hence option D is the correct answer.

Option (A) is incorrect because nitrogen monoxide \mathrm{\left ( NO \right )} is toxic. Hence option A is incorrect.

Option (B) is incorrect because nitrogen dioxide  is toxic. Hence option B is incorrect.

Option (C) is incorrect because nitrogen trioxide is also toxic and can cause respiratory problems. Hence option C is incorrect.

 

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