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AIIMS2018Chemistryp Block Elements (Group 15, 16, 17 & 18)

Which of the following is true for N ₂ O ₅ ?

Options

  1. AIt is paramagnetic.
  2. BIt is an anhydride of HNO ₂ .
  3. CIt is a brown gas.
  4. DIt exists in solid state in the form of [ NO ₂⁺ ] [ NO ₃⁻ ]

Correct answer

D. It exists in solid state in the form of [ NO ₂⁺ ] [ NO ₃⁻ ]

Step-by-step solution

N ₂ O ₅ is diamagnetic in nature. It is an anhydride of HNO ₃ . It exists as colourless solid below 273 ~K . N ₂ O ₅ exists as NO ₂⁺ NO ₃⁻ in solid form.

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