Free Standard Hydrogen Electrode MCQs with Answers
22 Standard Hydrogen Electrode MCQs from Chemistry, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
The standard hydrogen electrode provides the reference potential of 0.00 V for measuring electrode potentials. It consists of platinum in contact with hydrogen gas at standard pressure and hydrogen ions at standard concentration, usually at 25°C, and can operate as either the oxidation or reduction half-cell.
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22 questions · page 2 of 2
- A. The size of the electrode
- B. The pH of the solution
- C. The amount of metal in the anode
- D. The values of the half cell
Explanation: For a galvanic cell, emf can be calculated by standard reduction potentials for two half cells.
Correct answer: The values of the half cell- A. Standard Hydrogen Electrode SHE always acts as anode
- B. SHE may act as cathode or anode depending upon the reduction potential of the counterpart
- C. SHE always acts as cathode in voltaic cell
- D. None of the above
Explanation: SHE may act as cathode or anode depending upon the reduction potential of the counterpart: This statement is correct.
Correct answer: SHE may act as cathode or anode depending upon the reduction potential of the counterpart