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Some Compounds of Industrial Importance
Chemistry · Kerala SSLC (Class 10) · English Medium · 35 questions and answers
Sample questions
- Q: By which process is ammonia manufactured on a large scale?
- A: By the Haber process — the direct combination of nitrogen and hydrogen.
- Q: Write the equation for the manufacture of ammonia by the Haber process.
- A: N₂(g) + 3H₂(g) ⇌ 2NH₃(g) + heat. N₂ and H₂ in the ratio 1 : 3, sponge iron catalyst, very high pressure, optimum temperature 450 °C.
- Q: State the favourable conditions for the Haber process.
- A: High pressure (4 gas molecules → 2), optimum temperature 450 °C (lower favours yield but is too slow), sponge iron catalyst, and removing NH₃ as it forms.
- Q: Mention two important uses of ammonia.
- A: It is used to manufacture nitrogenous fertilisers (like urea and ammonium sulphate) and nitric acid; it is also used as a refrigerant.
- Q: By which process is nitric acid manufactured?
- A: By the Ostwald process — the catalytic oxidation of ammonia.
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