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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 · 2026 · Paper II, Chemistry · Q120 of 120

Geo-Scientist Prelims 2026 Chemistry Q120: In the solvolysis reactions of I and II in aqueous ethanol, which…

QuestionOrganic / sulfur neighbouring group participation

In the solvolysis reactions of I and II in aqueous ethanol, which one of the following statements is true ?

UPSC Combined Geo-Scientist Prelims 2026 Paper II (Chemistry), Q120: figure printed with the question
  1. (a) I reacts faster than II and the major product formed is III
  2. (b) I reacts faster than II and the major product formed is IV
  3. (c) II reacts faster than I and the major product formed is III
  4. (d) II reacts faster than I and the major product formed is IV

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