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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 · 2021 · Paper II, Chemistry · Q61 of 120

Geo-Scientist Prelims 2021 Chemistry Q61: Which one of the following aqueous solutions has the lowest vapor…

QuestionSolutions / colligative properties

Which one of the following aqueous solutions has the lowest vapor pressure at room temperature?

  1. (a) 0.1 molal hexaamminecobalt (III) chloride
  2. (b) 0.1 molal barium chloride
  3. (c) 0.1 molal glucose
  4. (d) 0.1 molal Tris (ethylenediamine) copper (II) sulfate

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Topic notes: solutions: Raoult’s and Henry’s laws, non-ideal solutions, colligative properties, the van ’t Hoff factor and activity, with every Civil Services, IFoS and Geo-Scientist PYQ →

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