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WBJEE Henry's Law — practice questions

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Henry's Law questions and exercises with answers

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Which gas does **not** obey Henry's law in water, because it reacts chemically with the solvent?Read the answer and worked solution →

Worked practice questions

Which gas does **not** obey Henry's law in water, because it reacts chemically with the solvent?

  1. He
  2. O₂
  3. NH₃
  4. N₂
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Correct answer: C. NH₃

NH₃ reacts with water: NH₃ + H₂O ⇌ NH₄⁺ + OH⁻, so its observed solubility is much higher than $K_H P$. CO₂ behaves similarly (CO₂ + H₂O ⇌ H₂CO₃). N₂, O₂, He are essentially inert and obey Henry's law.

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More Chemistry topics

Ideal and Non-Ideal SolutionsIdeal SolutionsNon-Ideal SolutionsReactions in Aqueous SolutionElectrochemistryElectrochemical SeriesCoordination CompoundsSolutions