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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 · 2023 · Paper II, Chemistry · Q46 of 120

Geo-Scientist Prelims 2023 Chemistry Q46: Equal volumes of two gases X and Y diffused through a porous pot in…

QuestionGaseous state / Graham’s law

Equal volumes of two gases X and Y diffused through a porous pot in 20 s and 10 s respectively. The molar mass of gas X is 200 g mol⁻¹. The molar mass of Y will be :

  1. (a) 20 g mol⁻¹
  2. (b) 50 g mol⁻¹
  3. (c) 80 g mol⁻¹
  4. (d) 100 g mol⁻¹

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