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In chemistry, a displacement reaction is where
a more reactive metal displaces a less reactive metal from its compound
two reactive metals join together to form an alloy
a less reactive metal displaces a more reactive metal from its compound
a more reactive metal is removed from its compound by a less reactive metal
Look at part of the reactivity series? Which one of the following statements is correct?
zinc is more reactive than magnesium
copper is the most reactive
tin is more reactive than lead
lead is more reactive than aluminium
calcium is more reactive than iron. What will be produced when calcium sulphate and iron are mixed together?
no reaction happens so the reactants stay the same
calcium and iron sulphate
iron sulphate and hydrogen
water and iron sulphate
When metal reacts with liquid water the products are...
metal hydroxide and oxygen gas
metal hydroxide and hydrogen gas
metal oxide and oxygen gas
metal oxide and hydrogen gas
The list which contains only metals is .......
aluminium, copper, nitrogen
iron, oxygen, hydrogen
iron, silver, aluminium
iron, sulphur, copper
Metals generally react with dilute acids to produce hydrogen gas. Which one of the following metals does not react with dilute hydrochloric acid?
Metals create _________ ions, because they give away (lose) electrons.
The metal which can be cut with knife.
Magnesium reacts with oxygen to make
magnesium oxide / basic in nature
magnesium oxide / acidic in nature
The chemical symbol for iron
copper+carbon dioxide+water+oxygen=copper hydroxide+______________
Zn, Fe, Al and Mg. When we arrange these elements in the ascending order of their
reactivity series we get
Mg < Al < Zn < Fe
Al < Mg < Fe < Zn
Zn < Al < Mg < Fe
Fe < Zn < Al < Mg