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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 · 2025 · Paper II, Chemistry · Q9 of 120

Geo-Scientist Prelims 2025 Chemistry Q9: The effective nuclear charge on the 4s electron of Vanadium atom is :

QuestionSlater's rules / effective nuclear charge

The effective nuclear charge on the 4s electron of Vanadium atom is :

  1. (a) 4.30
  2. (b) 3.30
  3. (c) 1.95
  4. (d) 5.20

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