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9.2 Nitric Acid — Chemistry STD 10 — Question

ICSE BoardEnglish MediumSTD 10Chemistry9.2 Nitric Acid3 Marks
Question
Why is the temperature maintained at 200°C in the above reaction?
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Answer

The temperature is maintained at 200°C in the above reaction to avoid following problems:
  • Nitric acid would decompose at high temperature.
  • Potassium or sodium sulphate is formed which will stick to the walls of glass and cannot be removed be easily.
  • The glass apparatus may break at high temperature.

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