(a) Arrange the following metals in order of their chemical reactivity, placing the most reactive metal first:Magnesium, Copper, Iron, Sodium, Zinc, Lead, Calcium.(b) What happens when a rod of zinc metal is dipped into a solution of copper sulphate? Give chemical equation of the reaction involved.
(a) Sodium > Calcium > Magnesium > Zinc > Iron > Lead > Copper is the order of their chemical reactivity.
(b) When a rod of zinc is dipped in copper sulphate solution, then the blue colour of the copper sulphate solution disappears and a coating of reddish-brown will deposit on the zinc strip
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