Question

What happens when a piece of (a) zinc metal is added to copper sulphate solution ? (b)aluminium metal is added to dilute hcl (c) silver metal is added to copper sulphate solution? also;write the balanced chemical equation if the reaction occurs?

Answer 1

Hey mate..

Here's your answer..

___________________________________

a) Zn+CuSO4-Cu +ZnSO4
b)2 Al+6Hcl-2AlCl3+3H2
c)Ag+CuSO4-no reaction

___________________________________


HOPE IT HELPS...

@Rêyaañ11

Answer 2

Blue colour of copper sulphate solution gets disappears.
Reason Aluminium reacts with dilute hydrochloric acid to form aluminium chloride and hydrogen gas.

Zn + CuSO4 = ZnSo4 + Cu

zinc(grey) +copper sulphate (blue). = zinc sulphate (colourless)+copper (brown)

(ii) Hydrogen gas is evolved.
Reason Zinc reacts with copper sulphate to form colourless zinc sulphate solution and solid copper in deposited form.

2Al + 6Hcl = 2AlCl3 + 3H2

aluminium + hydrochloric acid = aluminium chloride+ hydrogen


(iii) No reaction occurs.
Reason Silver metal is less reactive than copper, therefore, it cannot displace copper from copper sulphate solution.

Ag+Cuso4= no reaction

silver+copper sulphate= no reaction