VKC ScienceChemistry for written exams Telegram

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 · 2024 · Paper II, Chemistry · Q15 of 120

Geo-Scientist Prelims 2024 Chemistry Q15: Consider the following statements :

QuestionIonic equilibrium / buffers, salt hydrolysis

Consider the following statements :

  1. Statement–1 : An aqueous solution of NaH₂PO₄ is acidic and that of Na₂HPO₄ is basic in nature.
  2. Statement–2 : An equimolar mixture of NaH₂PO₄ and Na₂HPO₄ acts as a buffer.

Which one of the following is correct with respect to the above statements?

  1. (a) Both Statement–1 and Statement–2 are true and Statement–1 is not the correct explanation of Statement–2
  2. (b) Both Statement–1 and Statement–2 are true and Statement–1 is the correct explanation of Statement–2
  3. (c) Statement–1 is true but Statement–2 is false
  4. (d) Statement–1 is false but Statement–2 is true

Part of VKC Basic

Read the answer and its explanation with VKC Basic

VKC Basic (₹999 for 6 months) opens every solved answer, the notes, the handbook and the daily answer archive. Every Mains test series includes it.

See what is included Already a member? Sign in

Take this paper offlineAll 120 questions with answers and explanations in one PDF.
Download PDFJoin Telegram