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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 · 2022 · Paper II, Chemistry · Q8 of 120

Geo-Scientist Prelims 2022 Chemistry Q8: The effective nuclear charges for 4s and 3d electrons in nickel are

QuestionPeriodic properties / Slater's rules

The effective nuclear charges for 4s and 3d electrons in nickel are

  1. (a) 4·05 and 7·55 respectively
  2. (b) 7·55 and 4·05 respectively
  3. (c) 4·75 and 7·95 respectively
  4. (d) 4·25 and 7·65 respectively

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