Q55 of 102 Page 77

What would you observe when a strip of zinc is placed in copper sulphate solution? Write a word equation of the reaction which takes place.

When a strip of zinc is placed in copper sulphate solution it will displace copper from copper sulphate solution. Zinc is placed above copper in reactivity series of metal. Hence, it will be able to replace copper from copper sulphate solution.

Zinc + Copper Sulphate Copper + Zinc sulphate


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(a) Name the gas evolved when sodium reacts with water.


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