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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 · 2021 · Paper II, Chemistry · Q103 of 120

Geo-Scientist Prelims 2021 Chemistry Q103: Indicate the order of reactivity of HX in the following reaction:

QuestionAlcohols / conversion to alkyl halides

Indicate the order of reactivity of HX in the following reaction:

UPSC Combined Geo-Scientist Prelims 2021 Paper II (Chemistry), Q103: figure printed with the question
  1. (a) HI > HBr > HCl
  2. (b) HCl > HBr > HI
  3. (c) HBr > HI > HCl
  4. (d) HBr > HCl > HI

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