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  9. Q42

BPSC (Bihar PCS) 2019 · Question 42 of 148

Which of the following is also known as laughing gas?

Miscellaneous

  1. ANitric oxide
  2. BNitrous oxideCorrect
  3. CNitrogen pentoxide
  4. DNitrogen
  5. ENone of the above/More than one of the above

Answer: B. Nitrous oxide

Explanation

Nitrous oxide (N2O) is known as laughing gas.

Source: Jagranjosh

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