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 · 2025 · Paper II, Chemistry · Q13 of 120

Geo-Scientist Prelims 2025 Chemistry Q13: The redox chemistry of silver is given by the following equations :

QuestionElectrochemistry / redox potentials

The redox chemistry of silver is given by the following equations :

  1. Ag⁺(aq) + e⁻ → Ag(s) E° = + 0.80
  2. Ag²⁺(aq) + e⁻ → Ag⁺(aq) E° = + 1.98

Which of the following statements are not correct with respect to above equations ?
Statement (I) : Reaction 1 is thermodynamically more feasible than reaction 2.
Statement (II) : Ag⁺ is a good oxidizing agent.
Statement (III) : Reaction 2 is thermodynamically more feasible than reaction 1.
Statement (IV) : Ag⁺ is a good reducing agent.
Select the answer using the code given below :

  1. (a) Statement (III) and (IV)
  2. (b) Statement (I) and (II)
  3. (c) Statement (II) and (III)
  4. (d) Statement (I) and (IV)

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