Q. Consider the following statements about Nitrous oxide (N2O):
1.It is a greenhouse gas.
2.It can be used as a ‘laughing gas’.
3.The global warming potential of nitrous oxide is greater than that of carbon dioxide.
How many of the above statements are correct?
Answer: C
Notes:
Explanation: All statements are correct
Statement 1 is correct: Nitrous oxide is useful as a rocket propellant and as ‘laughing gas’. It is also used in dental clinics as an anaesthetic.
Statement 2 is correct: Nitrous oxide is now the third largest greenhouse gas. It is believed to be responsible for approximately 10% of net global warming since the Industrial Revolution.
Statement 3 is correct: Every unit of the Nitrous oxide warms the earth 300 times more than a similar quantity of carbon dioxide.
Source: TH
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