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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 · Q27 of 120

Geo-Scientist Prelims 2023 Chemistry Q27: Cobalt (III) chloride forms several octahedral complexes with…

QuestionCoordination chemistry / Werner’s theory

Cobalt (III) chloride forms several octahedral complexes with ammonia. Which one of the following will not give test of chloride ions with AgNO₃ at 25°C ?

  1. (a) CoCl₃.6NH₃
  2. (b) CoCl₃.5NH₃
  3. (c) CoCl₃.4NH₃
  4. (d) CoCl₃.3NH₃

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