Question

Explain the following:

1) Galvanization

2) Crystallization [2 MARKS]

Answer 1

Definition: 1 Mark each.

1) The process of deposition of a layer of zinc on iron is called galvanization. It prevents direct contact of iron with air and oxygen.

2) The process of formation of solid crystals from a homogeneous solution is called crystallization and it is a physical change. Eg: Formation of copper sulphate crystals.