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NEETChemistryp Block Elements (Group 15, 16, 17 & 18)

Which of the following can be used to remove the impurities NO and HNO 3 from dinitrogen gas?

Options

  1. AAqueous sulphuric acid containing potassium dichromate
  2. BSodium hydroxide solution
  3. CActivated charcoal
  4. DAll of the above

Correct answer

A. Aqueous sulphuric acid containing potassium dichromate

Step-by-step solution

The paragraph states that the impurities NO and HNO 3 can be removed from dinitrogen gas by passing the gas through aqueous sulphuric acid containing potassium dichromate.

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