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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 · Q74 of 120

Geo-Scientist Prelims 2023 Chemistry Q74: The conductivity and molar conductance of a saturated solution of…

QuestionElectrochemistry / solubility from conductance

The conductivity and molar conductance of a saturated solution of BaSO₄ are 3 × 10⁻⁶ S cm⁻¹ and 150 S cm² mol⁻¹, respectively. The K_sp for BaSO₄ will be :

  1. (a) 2 × 10⁻¹⁰
  2. (b) 2 × 10⁻¹⁶
  3. (c) 4 × 10⁻¹⁰
  4. (d) 4 × 10⁻¹⁶

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