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UPSC Combined Geo-Scientist

Chemist

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

Mains Paper I covers inorganic chemistry.

UPSC Combined Geo-Scientist, Mains · 2018 · Mains Paper I

Q6(b). Redox classification

Question

Distinguish between disproportionation and comproportionation reactions. Classify the following reactions into disproportionation or comproportionation reactions. Explain the reasons. (i) 3Cl₂ + 6NaOH → NaClO₃ + 5NaCl + 3H₂O (ii) 3HClO₂ → 2HClO₃ + HCl (iii) AgCl₂ + Ag → 2AgCl.

Answer in brief

(i) and (ii) are disproportionation; (iii) is comproportionation.

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CoversRedox classificationDisproportionation and comproportionation

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