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SSC MTS 2024 PYQ — Question 53

SSC MTS - 09/10/2024 - (9:00 AM - 11:00 AM) • General Awareness • Q53

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What is the chemical formula for the compound commonly known as 'laughing gas'?

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Correct answer: B

Explanation

The correct answer is  option 2  i.e.  N2O .

The chemical formula for the compound commonly known as 'laughing gas' is N₂O, which stands for dinitrogen oxide or nitrous oxide. It consists of two nitrogen atoms and one oxygen atom. This colorless, non-flammable gas has a slightly sweet odor and taste. Nitrous oxide is used medically as an anesthetic and analgesic, especially in dentistry and childbirth. It gets the nickname 'laughing gas' due to its euphoric effects when inhaled, often causing laughter. Aside from medical uses, it's also used as a propellant in whipped cream dispensers and has applications in the automotive industry to boost engine performance.

Incorrect Options:

  1. N₂O₃ – Dinitrogen trioxide, a toxic and unstable oxide, not laughing gas.

  2. NO₂ – Nitrogen dioxide, a brown toxic gas involved in air pollution.

  3. NO – Nitric oxide, used in biology and medicine, but not the same as laughing gas.