1) Which metal is the most reactive? a) gold b) aluminium c) sodium d) iron 2) sulphuric acid + magnesium ==> a) magnesium nitrate b) magnesium sulphate + hydrogen c) magnesium sulphate + oxygen d) magnesium oxide 3) which metal is the least reactive? a) gold b) silver c) tin d) lead 4) copper sulphate + magnesium ==> a) no reaction b) magnesium sulphate + copper c) copper magnesium + sulphuric acid d) sulphate + copper 5) If you make the acid more concentrated then the time taken for Mg to dissolve will . . . a) increase b) stay the same c) decrease 6) Sodium + water ==> a) sodium hydroxide + hydrogen b) sodium nitrate + oxygen c) sodium sulphate + hydrogen d) sodium hydroxide + carbon dioxide 7) __________ + _________ ==> metal oxide a) metal + acid b) metal + hydrogen c) metal + water d) metal + oxygen 8) the metal used to build aeroplanes because it has a low density a) copper b) aluminium c) lead d) iron 9) the magnetic metal a) gold b) tin c) sodium d) iron 10) the test for hydrogen a) squeaky pop b) relights a glowing spill c) turns limewater cloudy

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