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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 · Q99 of 120

Geo-Scientist Prelims 2025 Chemistry Q99: Consider the following statements regarding compounds I – IV :

QuestionOrganic / conformational effects on reactivity

Consider the following statements regarding compounds I – IV :

  1. Compound I reacts with KOCMe₃ in t-butyl alcohol faster than compound II.
  2. Compound I reacts with KOCMe₃ in t-butyl alcohol slower than compound II.
  3. Compound III undergoes acid-catalyzed hydration faster than compound IV.
  4. Compound III undergoes acid-catalyzed hydration slower than compound IV.
UPSC Combined Geo-Scientist Prelims 2025 Paper II (Chemistry), Q99: figure printed with the question

Which of the statements given above are correct ?

  1. (a) 1 and 3
  2. (b) 1 and 4
  3. (c) 2 and 3
  4. (d) 2 and 4

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