Electrochemical Cells Quiz

Which of the following statements is true about electrolytic cells?

• They operate spontaneously.

• They require an external power source.

• They produce electrical energy.

• They do not involve redox reactions.

What is the purpose of a salt bridge in a galvanic cell?

• To provide a pathway for electrons

• To maintain electrical neutrality

• To increase the cell voltage

• To facilitate oxidation

Which of the following is a common application of electrochemistry?

• Photosynthesis

• Battery technology

• Combustion engines

• Mechanical work

In electroplating, which type of cell is used?

• Galvanic cell

• Electrolytic cell

• Fuel cell

• Concentration cell

Which of the following processes occurs at the anode of an electrolytic cell?

• Reduction

• Oxidation

• Ionization

• Precipitation

What is the primary function of a galvanic cell?

• To convert chemical energy into electrical energy

• To convert electrical energy into chemical energy

• To store electrical energy

• To measure voltage

In a galvanic cell, which electrode is the site of oxidation?

• Anode

• Cathode

• Salt bridge

• Electrolyte

Which of the following is NOT a characteristic of galvanic cells?

• They generate electrical energy.

• They are spontaneous.

• They require an external power source.

• They involve redox reactions.

In an electrolytic cell, the cathode is defined as the electrode where:

• Reduction occurs

• Oxidation occurs

• No reaction occurs

• The salt bridge is located

What is the standard cell potential ($E^\circ$) of a galvanic cell composed of a zinc electrode and a copper electrode?

• 0.34 V

• 1.10 V

• 0.76 V

• 1.96 V