Question

Which of the following is not the disadvantage of hydrogen electrode?

(a) Platinum can be easily poisoned

(b) Presence of oxidising agents alters the potential

(c) It gives a salt error

(d) H2 gas at 1 atmospheric pressure is difficult to set up and transport

I got this question in a job interview.

I'd like to ask this question from Hydrogen and Glass Electrodes topic in section pH Meters and Ion Analysers of Analytical Instrumentation

Answer 1

Right answer is (c) It gives a salt error

Easy explanation: Hydrogen electrode does not give a salt error. A number of hydrogen electrodes are available.