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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 · 2026 · Paper II, Chemistry · Q77 of 120

Geo-Scientist Prelims 2026 Chemistry Q77: Match List-I with List-II and select the correct answer using the…

QuestionElectrochemistry / conductometric titrations

Match List-I with List-II and select the correct answer using the code given below the lists :

List I (conductometric titration)List II (titration curve)
A. HCl vs KOH1. Conductance falls, stays flat, then rises after the end point
B. HCl vs NH₄OH2. Conductance falls, then stays flat
C. CH₃COOH vs NaOH3. Conductance falls steeply, then rises (V-shape)
D. Oxalic acid vs NaOH4. Small initial dip, slow rise, then steeper rise after the end point
UPSC Combined Geo-Scientist Prelims 2026 Paper II (Chemistry), Q77: figure printed with the question
  1. (a) A-3, B-2, C-4, D-1
  2. (b) A-3, B-4, C-2, D-1
  3. (c) A-1, B-2, C-4, D-3
  4. (d) A-1, B-4, C-2, D-3

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