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Shyam Dubey • 3.70K Points
Extraordinary

Q. Which of the following is a characteristic of an ideal solution?

  • (A) Volume changes on mixing
  • (B) Heat is evolved or absorbed on mixing
  • (C) Raoult's law is obeyed for all components
  • (D) Components react chemically on mixing
  • Correct Answer - Option(C)
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Explanation by: Shyam Dubey
Ideal solutions obey Raoult's law across the composition range; there is no net enthalpy change on mixing (ΔHmix = 0) and no volume change on mixing (ΔVmix = 0). Therefore options 1 and 2 are characteristics of non-ideal solutions, and option 4 is false for ideal solutions because chemical reaction on mixing would make it non-ideal. Option 3 is the correct trait.

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