Question

Q. Pick out the true statement about the standard hydrogen electrode.
A. The standard hydrogen electrode consists of a carbon electrode coated with platinum black
B. The electrode is dipped in a basic solution and pure hydrogen gas is bubbled through it.
C. The concentration of both the reduced and oxidized forms of hydrogen is maintained at unity
D. The pressure of hydrogen gas is two bar and the concentration of hydrogen ions in the solution is two molar

Answer 1

Answer:

Hydrogen atoms are adsorbed on the Pt terminal and carry on as a H2 plate. So it has a platinum metallic channel and absorbs hydrogen gas. Hence, the correct option is B, C, and D.