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Question 710016
JEE Chemistry · Easy

Electrochemistry: Mixed MCQ

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MixedEasyQuestion 710016

Question

Which of the following is used as electrolyte in the hydrogen fuel cell?
  1. A
    Aqueous KOH or H₃PO₄
    Correct
  2. B
    NaCl solution
  3. C
    H₂SO₄ only
  4. D
    Pure water

Correct answer

Aqueous KOH or H₃PO₄

Explanation

Hydrogen fuel cells use alkaline (KOH) or acidic (H₃PO₄ or PEM membrane) electrolytes. Both H₂ (fuel) and O₂ (oxidant) are supplied externally.

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