Electrochemistry Quiz

What is the basis for an electrochemical cell?

• Acid-base reaction

• Precipitation reaction

• Redox reaction

• Combustion reaction

What is the half-reaction that occurs at the anode?

• Neutralization

• Formation of gas

• Gain of electron

• Loss of electron

What is the half-reaction that occurs at the cathode?

• Gain of electron

• Loss of electron

• Formation of gas

• Neutralization

What is the standard electrode potential commonly written as?

• Standard half-reaction potential

• Standard oxidation potential

• Standard cell potential

• Standard reduction potential

What is the tendency of metal ions from the solution at the electrode-electrolyte interface?

• To gain electrons

• To lose electrons

• To neutralize

• To form gas

What is the structure that appears on the surface of an object when it is exposed to a fluid in surface science?

• Physical double layer

• Biological double layer

• Chemical double layer

• Electrical double layer

What is the equation for the Tafel equation for a cathodic overpotential?

• η = a + b log i

• η = a - b log i

• η = a / b log i

• η = a * b log i

What is the type of overpotential that results from a difference in concentration of the solution near the polarized electrode and the reversible one?

• Activation overpotential

• Concentration overpotential

• Pseudo ohmic overpotential

• Ohmic overpotential

What is the type of overpotential that results from a slow step to bring the reaction to the final stage?

• Activation overpotential

• Concentration overpotential

• Pseudo ohmic overpotential

• Ohmic overpotential

What is the type of overpotential that results from an oxide film or a gaseous film setting a resistance to the passage of the current across it?

• Ohmic overpotential

• Pseudo ohmic overpotential

• Concentration overpotential

• Activation overpotential