NEET 2016 Chemistry Standard Hydrogen Electrode MCQ Question
The pressure of H₂ required to make the potential of H₂ electrode zero in pure water at 298 K is ______.
10⁻¹⁰ atm
10⁻⁴ atm
10⁻¹⁴ atm
10⁻¹² atm
Correct Answer
Detailed Explanation
The potential of the hydrogen electrode is zero when the concentration of H⁺ ions is 10⁻⁷ M, corresponding to a pressure of 10⁻¹⁴ atm.
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