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UPSC Combined Geo-Scientist

Chemist

  • 2 objective papers
  • 120 questions each
  • 2 h per paper
  • 100 + 300 marks

Prelims Paper I covers general studies.

UPSC Combined Geo-Scientist, Prelims · 2026 · Paper I, General Studies · Q112 of 120

Geo-Scientist Prelims 2026 General Studies Q112: Which one of the following materials is strongly paramagnetic due…

QuestionPhysics / Magnetic materials

Which one of the following materials is strongly paramagnetic due to the presence of unpaired f-electrons and is widely used in MRI contrast agents?

  1. (a) Lead
  2. (b) Gadolinium
  3. (c) Bismuth
  4. (d) Platinum

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