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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 · Q3 of 120

Geo-Scientist Prelims 2025 Chemistry Q3: The correct electronic configuration of Platinum is :

QuestionElectronic configuration / d-block

The correct electronic configuration of Platinum is :

  1. (a) [Xe] 4f¹⁴ 5d¹⁰ 6s⁰
  2. (b) [Xe] 4f¹⁴ 5d⁹ 6s¹
  3. (c) [Xe] 4f¹⁴ 5d⁸ 6s²
  4. (d) [Xe] 4f¹³ 5d¹⁰ 6s¹

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