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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 · 2026 · Paper I, General Studies · Q61 of 120

Geo-Scientist Prelims 2026 General Studies Q61: What is the molarity of NaOH in the solution prepared by dissolving…

QuestionChemistry / Concentration terms

What is the molarity of NaOH in the solution prepared by dissolving its 4 g in 250 mL of solution? (The atomic mass of sodium is 23)

  1. (a) 0·04 M
  2. (b) 0·4 M
  3. (c) 4 M
  4. (d) 40 M

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