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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 · Q79 of 120

Geo-Scientist Prelims 2025 Chemistry Q79: The molar conductivity of 0.02 M formic acid is 40 S cm² mol⁻¹. The…

QuestionElectrochemistry / degree of dissociation

The molar conductivity of 0.02 M formic acid is 40 S cm² mol⁻¹. The degree of dissociation and dissociation constant are respectively : [where, λ^∞ (H⁺) = 350 S cm² mol⁻¹ and λ^∞ (HCOO⁻) = 50 S cm² mol⁻¹]

  1. (a) 0.2 and 2.2 × 10⁻⁴
  2. (b) 0.1 and 2.2 × 10⁻⁶
  3. (c) 0.2 and 2.2 × 10⁻³
  4. (d) 0.1 and 2.2 × 10⁻⁴

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