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1. which of the following metals is so reactive it is stored under oil
- copper
- sodium
- aluminium
- magnesium
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Other questions in this quiz
2. a small amount of tin is added to lead - compared to lead the melting point of the mixture will be
- higher and less precise
- lower and less precise
- higher and more precise
- unchanged
3. Zn + H2SO4->___+H2 - Which of the following formulae represents the missing salt in the equation
4. which of the following statements is true
- copper is used as a roof covering because it is a good conductor of electricity
- copper is used as a roof covering because it is malleable
- copper is used as a roof covering because it changes to a green colour
- copper is used as a roof covering because it conducts heat well
5. when scratched to remove its surface, which of the following metals will react most quickly with the air
- lead
- aluminium
- copper
- tin
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