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UPSC Combined Geo-Scientist

Chemist

  • 2 objective papers
  • 120 questions each
  • 2 h per paper
  • 100 + 300 marks

Prelims Paper II covers chemistry.

UPSC Combined Geo-Scientist, Prelims · 2023 · Paper II, Chemistry · Q66 of 120

Geo-Scientist Prelims 2023 Chemistry Q66: Consider the following table regarding Henry’s Law constant values…

QuestionSolutions / Henry’s law

Consider the following table regarding Henry’s Law constant values for N₂ and O₂ gas in water at different temperatures :

UPSC Combined Geo-Scientist Prelims 2023 Paper II (Chemistry), Q66: figure printed with the question

Which one of the following statements is correct in respect of the table given above ?

  1. (a) N₂ is more soluble than O₂ and the solubility decreases with decrease in temperature.
  2. (b) O₂ is more soluble than N₂ and the solubility decreases with decrease in temperature.
  3. (c) N₂ is more soluble than O₂ and the solubility increases with decrease in temperature.
  4. (d) O₂ is more soluble than N₂ and the solubility increases with decrease in temperature.

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