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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 · 2024 · Paper I, General Studies · Q2 of 120

Geo-Scientist Prelims 2024 General Studies Q2: Which one among the following statements regarding acids and bases…

QuestionAcids and bases / Lewis concept

Which one among the following statements regarding acids and bases is *not* correct ?

  1. (a) A conjugate base of a strong acid is a weak base.
  2. (b) In aqueous solution, the hydroxide ion is hydrated to give several ionic species like H₃O₂⁻, H₅O₃⁻ and H₇O₄⁻ etc.
  3. (c) AlCl₃ is an electron deficient compound, and can act as a Lewis base.
  4. (d) Fluoride ion acts as a Lewis base as it can donate any one of its four electron lone pairs.

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