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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 · 2023 · Paper I, General Studies · Q16 of 120

Geo-Scientist Prelims 2023 General Studies Q16: Which one of the following is the correct order of increase of the…

QuestionPeriodic properties / atomic radius

Which one of the following is the correct order of increase of the atomic radius of the elements?

  1. (a) C < B < Si < Al
  2. (b) C < B < Al < Si
  3. (c) C < Si < B < Al
  4. (d) Si < Al < C < B

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