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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 · 2025 · Paper II, Chemistry · Q73 of 120

Geo-Scientist Prelims 2025 Chemistry Q73: The molar conductivities at infinite dilution Λ°m for Ba(OH)₂,…

QuestionElectrochemistry / Kohlrausch's law

The molar conductivities at infinite dilution Λ°m for Ba(OH)₂, BaCl₂ and NH₄Cl are 460 S cm² mol⁻¹, 240 S cm² mol⁻¹ and 2130 S cm² mol⁻¹ respectively. The Λ°m for NH₄OH will be :

  1. (a) 2240 S cm² mol⁻¹
  2. (b) 2470 S cm² mol⁻¹
  3. (c) 2600 S cm² mol⁻¹
  4. (d) 2340 S cm² mol⁻¹

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