When zinc pieces are are put in copper sulphate solution what happens ?

Explanation -
Zinc is more reactive than copper. So, by adding zinc to CuSO4 solution, zinc displaces copper from copper sulphate & forms zinc sulphate solution. This is indicated by colour change from blue to colourless. CuSO4 solution has a blue colour while ZnSO4 solution is colourless.

Chemical equation -
Zn(s) + CuSO4(aq) -> Cu(s) + ZnSO4 (aq).

Type of reaction -

It's a displacement reaction.

It's a redox reaction. Oxidation number of Cu decreases from 2 to 0 so it's reduced. Oxidation number of Zn increases from 0 to 2 so it's oxidised.

The atomic nucleus made up from protons (yellow) and neutrons (blue) and held together by nuclear forces. nuclear forces (also known as nuclear interactions or strong forces) are the forces that act between two or more nucleons. they bind protons and neutrons (“nucleons”) into atomic