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UPSC Combined Geo-Scientist

Chemist

  • 3 descriptive papers
  • 200 marks each
  • 3 h per paper

Mains Paper II covers physical chemistry.

UPSC Combined Geo-Scientist, Mains · 2017 · Mains Paper II

Q8(b). Zinc–copper galvanic cell

Question

The standard reduction potential of Zn²⁺/Zn is negative and that of Cu²⁺/Cu positive. Give the reaction when they form a galvanic cell, with reasons.

Answer in brief

Zn(s) + Cu²⁺(aq) → Zn²⁺(aq) + Cu(s).

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CoversZinc–copper galvanic cellElectrochemistry

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