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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 · Q40 of 120

Geo-Scientist Prelims 2026 Chemistry Q40: Which one of the following indicators is NOT used as acid-base…

QuestionAnalytical chemistry / indicators

Which one of the following indicators is NOT used as acid-base indicator ?

  1. (a) Methyl orange
  2. (b) Phenolphthalein
  3. (c) Murexide
  4. (d) Methyl red

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