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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 · 2022 · Paper II, Chemistry · Q110 of 120

Geo-Scientist Prelims 2022 Chemistry Q110: The major products [X] and [Y] formed in the following reactions are

QuestionAromatic substitution / benzyne

The major products [X] and [Y] formed in the following reactions are

UPSC Combined Geo-Scientist Prelims 2022 Paper II (Chemistry), Q110: figure printed with the question
UPSC Combined Geo-Scientist Prelims 2022 Paper II (Chemistry), Q110: answer options as printed
  1. (a) [X] = [Y] = N,N-diethyl-3-[2-(methylamino)ethyl]aniline
  2. (b) [X] = [Y] = N,N-diethyl-2-[2-(methylamino)ethyl]aniline
  3. (c) [X] = [Y] = 1,2,3,4-tetrahydroisoquinoline
  4. (d) [X] = [Y] = 1-methylindoline

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Topic notes: reactive intermediates (carbocations, carbanions, radicals, carbenes, nitrenes, benzyne), with every Civil Services, IFoS and Geo-Scientist PYQ →

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