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MHT CET202312 May 2023Morning ShiftChemistrySolutionsActual

Which among the following solutions has minimum boiling point elevation?

Options

  1. A0.1 ~m NaCl
  2. B0.2 ~m KNO ₃
  3. C0.1 ~m Na ₂ SO ₄
  4. D0.05 ~m CaCl ₂

Correct answer

D. 0.05 ~m CaCl ₂

Step-by-step solution

NaCl Na ⁺+ Cl ⁻ Total ions =0.1+0.1=0.2 ions KNO ₃ K ⁺+ NO ₃⁻ Total ions =0.2+0.2=0.4 ions Na ₂ SO ₄ 2 Na ⁺+ SO ₄²⁻ Total ions =0.2+0.1=0.3 ions CaCl ₂ Ca ²⁺+2 Cl ⁻ Total ions =0.05+0.1=0.15 ions 0.05 ~m CaCl ₂ solution has minimum ions in solution, so it shows minimum boiling point elevation.

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