1) The following conditions are required for iron to rust: a) oxygen and water b) oxygen and oil c) oxygen and salt d) oxygen and carbon dioxide 2) Rusting of iron is an example of a: a) decomposition reaction b) redox reaction c) combustion reaction d) displacement reaction 3) In redox reactions: a) oxidation is gain of electrons and reduction is gain of electrons b) oxidation is gain of electrons and reduction is loss of electrons c) oxidation is loss of electrons and reduction is loss of electrons  d) oxidations is loss of electrons and reduction is gain of electrons  4) When iron rusts:  a) iron gains electrons and oxygen gains electrons b) iron gains electrons and oxygen loses electrons c) iron loses electrons and oxygen loses electrons d) iron loses electrons and oxygen gains electrons 5) When iron rusts:  a) iron is oxidised and oxygen is reduced b) iron is oxidised and oxygen is oxidised c) iron is reduced and oxygen is reduced d) iron is reduced and oxygen is oxidised  6) Rusting of iron may be prevented by:  a) painting the metal b) galvanising the metal c) oiling or greasing the metal d) a, b and c 7) Galvanising is:  a) coating the metal in zinc b) coating the metal in copper  c) coating the metal in paint d) coating the metal in gold 8) Galvanised iron is protected from rusting because: a) zinc lubricates the iron b) zinc does not corrode c) zinc is more reactive than iron and corrodes instead d) zinc is less reactive than iron and corrodes instead

Corrosion

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