Q64 of 400 Page 134

Name one metal more reactive and another less reactive than hydrogen.

Lead is more reactive than hydrogen and copper is less reactive than hydrogen is the example of one metal more reactive and another less reactive than hydrogen.

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64 What is meant by the reactivity series of metals? Arrange the following metals in an increasing order of their reactivity towards water:

Zinc, Iron, Magnesium, Sodium

 64 Hydrogen is not a metal but still it has been assigned a place in the reactivity series of metals. Why? 64 Name one metal which displaces copper from copper sulphate solution and one which does not.

Solution||| the one metal which displaces copper from copper sulphate solution is zinc. Zinc displaces copper fro the solution of copper sulphate Solution|||The one metal which do not do so is mercury. As mercury do not displace copper from copper sulphate

 64 Name one metal which displaces silver from silver nitrate solution and one which does not.