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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 · Q58 of 120

Geo-Scientist Prelims 2023 General Studies Q58: Lassaigne’s test is used for the detection of which of the…

QuestionOrganic chemistry / qualitative analysis

Lassaigne’s test is used for the detection of which of the following elements?

  1. (a) N, S, P, Cl
  2. (b) C, N, P, Br
  3. (c) C, N, S, I
  4. (d) C, N, S, Br

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