1. What is electrochemistry?
A. Study of heat
B. Study of chemical reactions involving electricity
C. Study of light
D. Study of gases
Answer: B
2. Which device converts chemical energy into electrical energy?
A. Electrolytic cell
B. Galvanic cell
C. Heater
D. Battery charger
Answer: B
3. Which cell uses electrical energy to drive a non-spontaneous reaction?
A. Galvanic cell
B. Electrolytic cell
C. Dry cell
D. Fuel cell
Answer: B
4. The oxidation occurs at:
A. Cathode
B. Anode
C. Salt bridge
D. Electrolyte
Answer: B
5. Reduction occurs at:
A. Anode
B. Cathode
C. Salt bridge
D. Wire
Answer: B
6. In a galvanic cell, electrons flow from:
A. Cathode to anode
B. Anode to cathode
C. Electrolyte to electrode
D. Salt bridge to electrode
Answer: B
7. The standard electrode potential is measured under:
A. Random conditions
B. Standard conditions
C. Low pressure
D. High temperature
Answer: B
8. The unit of electrode potential is:
A. Ampere
B. Volt
C. Ohm
D. Joule
Answer: B
9. Which electrode is positive in a galvanic cell?
A. Anode
B. Cathode
C. Salt bridge
D. Both
Answer: B
10. Which electrode is negative in a galvanic cell?
A. Cathode
B. Anode
C. Salt bridge
D. None
Answer: B