ICSE Class 10 Chemistry Question 2 of 23

Solved Sample Paper 1 — Question 3

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Question

Question 1(iii)

During the Ostwald's process, the gaseous reactants used are

  1. nitrogen and oxygen
  2. oxygen and carbon dioxide
  3. chlorine and nitrogen
  4. ammonia and oxygen
Answer

ammonia and oxygen

Reason

4NH3+5O2700800°CPt4NO+6H2O+21.5K cals4\text{NH}_3 + 5\text{O}_2 \xrightarrow[700-800 \degree\text{C}]{\text{Pt}} 4\text{NO} + 6\text{H}_2\text{O} + 21.5 \text{K cals}