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UPSC Combined Geo-Scientist

Chemist

  • 3 descriptive papers
  • 200 marks each
  • 3 h per paper

Mains Paper III covers analytical and organic chemistry.

UPSC Combined Geo-Scientist, Mains · 2016 · Mains Paper III

Q6(c). Triiodide formation

Question

1.022 g KIO₃ (FM 214) is made up to 500 mL. A 50 mL aliquot receives 2 g KI and 10 mL of 0.5 M mineral acid. Find the moles of I₃⁻ produced.

Answer in brief

n(I₃⁻)=1.433×10⁻³ mol.

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CoversTriiodide formationIodometry

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