@Which one of the following, if put into water, forms a white solid?
Calcium
Potassium
Sodium

@What would happen if zinc metal was added to magnesium chloride solution?
Nothing
Magnesium would be deposited
Hydrogen gas would be produced

@Which one of the following would be most suitable to prepare hydrogen gas from hydrochloric acid?
Zinc
Calcium
Copper

@Which of the following shows that zinc is more reactive than copper?
Zinc added to copper sulphate solution causes copper to be displaced
Zinc has a lower melting point than copper
Zinc only forms one oxide, but copper forms two

@What would happen if magnesium was added to silver nitrate solution?
Silver would be deposited
Nothing
Hydrogen gas would be produced

@What two substances are necessary for rusting to occur?
Air and water
Water and an oxide
Oxygen and nitrogen

@Caesium is an alkaki metal in group 1. When placed in water it will produce:
Caesium hydroxide and hydrogen
Caesium oxide and hydrogen
Caesium oxide and oxygen

@A metal nitrate was heated, producing oxygen gas, and left behind a pale yellow residue. The nitrate was:
Sodium nitrate
Lead nitrate
Calcium nitrate

@In which of the following pairs can both metals be obtained by passing carbon monoxide over the hot metal oxide?
Lead and copper
Aluminium and iron
Copper and magnesium

@Which one of the alkali metals (Group 1) is the most reactive?
Rb
Li
K