Question

For 1N KCL standard reduction potential in the calomel electrode is __________

(a) 0.28V

(b) 0.25V

(c) 0.5V

(d) 1V

This question was addressed to me by my college director while I was bunking the class.

Origin of the question is Types of Fuel Cells in chapter Electro Chemical Cells and Corrosion of Applied Chemistry

Answer 1

The correct answer is (a) 0.28V

Best explanation: For 1N KCL standard reduction in the calomel electrode is 0.28V. For 0.1N KCL solution the reduction potential is 0.3338V.