1. What is the main difference between a cell and a battery?

a) A cell is larger than a battery
b) A battery is a group of cells connected together
c) A cell produces a larger voltage than a battery
d) A battery is used in cars but a cell is not

2. The typical voltage of a single alkaline cell is volts.

3. What does the term electrolyte refer to?

a) The metals used in electrical cells
b) The positive electrode in a cell
c) The negative electrode in a cell
d) A solution that conducts electricity

4. To make an electrical cell all that is needed is two metals in contact with a solution that conducts ; that is an electrolyte.

5. Which metal undergoes oxidation in an electrical cell?

a) The more reactive metal
b) The least reactive metal

6. What is the role of the salt bridge in an electrochemical cell?

a) To increase the voltage
b) To prevent unwanted reactions
c) To complete the circuit and maintain charge balance in the cell
d) To heat the electrolyte

7. What is one of the key factors that affects the size of the voltage produced by an electrochemical cell?

a) The size of the metals
b) The distance between the metals in the reactivity series
c) The shape of the containerl
d) The temperature of the room

8. Ions present in a cell but which take no part in the cell reactions are called ions.

9. What is an important property of an electrolyte used in a cell?

a) It should react strongly with the metal electrodes
b) It should be inert and not react with the metal electrodes
c) It should be a solid
d) It must be acidic

10. Study the image of the cell shown opposite. In this cell which way will the electrons flow take place?

a) From the zinc metal to the copper metal
b) From the copper metal to the zinc metal

11. Which metal will form the negatively charged anode in the cell shown opposite?

a) Zinc
b) Copper