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KCET2021Chemistryp Block Elements (Group 15, 16, 17 & 18)

A colourless, neutral, paramagnetic oxide of nitrogen ' P ' on oxidation gives reddish brown gas Q . Q on cooling gives colourless gas R . R on reaction with P gives blue solid S . Identify P, Q, R, S respectively

Options

  1. AN ₂ O , NO , NO ₂, ~N ₂ O ₅
  2. BN ₂ O , NO ₂, ~N ₂ O ₄, ~N ₂ O ₃
  3. CNO ₂, NO ₂, ~N ₂ O ₄, ~N ₂ O ₃
  4. DNO , NO , N ₂ O ₄, ~N ₂ O ₅

Correct answer

C. NO ₂, NO ₂, ~N ₂ O ₄, ~N ₂ O ₃

Step-by-step solution

The complete given chemical reaction take place as follows Note: Nitric oxide is paramagnetic as it contain unpaired electron as per molecular orbital theory.

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