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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 · Q73 of 120

Geo-Scientist Prelims 2026 General Studies Q73: Consider the following statements regarding oxidation :

QuestionChemistry / Redox reactions

Consider the following statements regarding oxidation :

  1. There is loss of hydrogen.
  2. There is gain of oxygen.
  3. There is gain of electrons.
  4. Oxidation state increases.

Which of the statements given above are correct?

  1. (a) I, II and III
  2. (b) I, III and IV
  3. (c) I, II and IV
  4. (d) II, III and IV

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