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UPSC Combined Geo-Scientist

Chemist

  • 2 objective papers
  • 120 questions each
  • 2 h per paper
  • 100 + 300 marks

Prelims Paper I covers general studies.

UPSC Combined Geo-Scientist, Prelims · 2023 · Paper I, General Studies · Q61 of 120

Geo-Scientist Prelims 2023 General Studies Q61: Which one of the following reagents is used to carry out the…

QuestionOrganic chemistry / reduction of esters

Which one of the following reagents is used to carry out the transformation given below?
CH₃(CH₂)₉COOC₂H₅ → CH₃(CH₂)₉CHO

  1. (a) DIBAL-H/H₂O
  2. (b) H₂/Pd-BaSO₄
  3. (c) SnCl₂/HCl
  4. (d) LiAlH₄

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