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JEE Main202228 Jun 2022Morning ShiftChemistryp Block Elements (Group 15, 16, 17 & 18)Actual

Nitrogen gas is obtained by thermal decomposition of:

Options

  1. ANaNO 2
  2. BNaNO 3
  3. CBa N 3 2
  4. DBa NO 3 2

Correct answer

C. Ba N 3 2

Step-by-step solution

NaNO 3 → ∆ NaNO 2 + 1 2 O 2 (Thermally stable and does not undergo decomposition further) Ba N 3 2 → ∆ Ba + 3 N 2 2 Ba NO 3 2 → ∆ 2 BaO + 4 NO 2 + O 2

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