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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 · 2024 · Paper II, Chemistry · Q110 of 120

Geo-Scientist Prelims 2024 Chemistry Q110: The major product formed in the following reaction is

QuestionAromatic substitution / nitration then SNAr

The major product formed in the following reaction is

UPSC Combined Geo-Scientist Prelims 2024 Paper II (Chemistry), Q110: figure printed with the question
UPSC Combined Geo-Scientist Prelims 2024 Paper II (Chemistry), Q110: answer options as printed
  1. (a) 4-chloro-2-nitroanisole (OMe and NO₂ ortho; Cl para to OMe)
  2. (b) 4-methoxy-3-nitrobenzotrifluoride (CF₃; NO₂ meta to CF₃; OMe para to CF₃)
  3. (c) 4-chloro-3-nitroanisole (OMe para to Cl; NO₂ ortho to Cl)
  4. (d) 4-methoxy-2-nitrobenzotrifluoride (NO₂ ortho to CF₃; OMe para to CF₃)

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