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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 · 2023 · Paper II, Chemistry · Q98 of 120

Geo-Scientist Prelims 2023 Chemistry Q98: Which one of the following alkyl halides favours SN1 mechanism ?

QuestionOrganic / SN1 and carbocation stability

Which one of the following alkyl halides favours SN1 mechanism ?

UPSC Combined Geo-Scientist Prelims 2023 Paper II (Chemistry), Q98: answer options as printed
  1. (a) 4-Methoxybenzyl chloride
  2. (b) 4-Nitrobenzyl chloride
  3. (c) Neopentyl chloride (1-chloro-2,2-dimethylpropane)
  4. (d) α-Chloro ketone, RCOC(CH₃)₂Cl

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