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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 · 2017 · Mains Paper I

Q7(b). Phosphorus oxide cages

Question

Draw the structures of P₄O₆ and P₄O₁₀.

Answer in brief

Both cages have four P atoms at tetrahedral vertices and six bridging oxygen atoms; P₄O₁₀ additionally has one terminal oxygen on each P.

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CoversPhosphorus oxide cagesMolecular structures

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