Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Write short notes on crushing and grinding. [2 Marks]

Answer 1

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> The first method of metallurgy is crushing and grinding. [0.5 Marks]
The ores occur in nature as huge lumps. [0.5 Marks]
They are broken into small pieces with the help of crushers and grinders. [0.5 Marks]
These pieces are then reduced to fine powder by using a ball mill or stamp mill. This process is known as pulverization. [0.5 Marks]