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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 · 2026 · Paper II, Chemistry · Q67 of 120

Geo-Scientist Prelims 2026 Chemistry Q67: Which of the following statements regarding the colligative…

QuestionSolutions / colligative properties

Which of the following statements regarding the colligative properties of solutions containing a non-volatile electrolyte are correct ?

  1. The vapour pressure of the pure solvent is higher than that of the solution
  2. The vapour pressure of the pure solvent is less than that of the solution
  3. Only solute molecules solidify at the freezing point
  4. Only solvent molecules solidify at the freezing point

Select the answer using the code given below :

  1. (a) 1 and 3
  2. (b) 2 and 4
  3. (c) 1 and 4
  4. (d) 2 and 3

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