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- 1. Multiple Choice
Which of the following metals reacts with water?
Magnesium
Iron
Silver
potassium
- 2. Multiple Choice
Which method of extraction is used to extract potassium from its ore?
Heat alone
Heating with carbon
Electrolysis
Using a magnet
- 3. Multiple Choice
What is a metal ore?
Naturally occurring metal compound in rocks
A pure element found in rocks
- 4. Multiple Choice
The energy in an electrochemical cell comes from
The wires
The electrolyte
Chemical reactions
- 5. Multiple Choice
An electrolyte is a conductive solution?
True
False
- 6. Multiple Choice
Which of the following metals can be extracted from its ore by heat alone?
Iron
silver
Calcium
Soodium
- 7. Multiple Choice
Whioch of the following pairs of metals will give the LARGEST voltage?
Iron and Zinc
Potassium and Sodium
Magnesium and silver
Sodium and Lithium
- 8. Multiple Choice
Which of the following could be used as the electrolyte solution in an electrochemical cell?
Hydrochloric acid
Sodium
Magnesium
- 9. Multiple Choice
Which of the following metals is found in its pure form?
Aluminium
Calcium
Gold
Iron
- 10. Multiple Choice
What would happen to a silver ring if it was dropped into some acid?
It will react
Nothing will happen
It will catch fire
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