Question

Bassemerisation is used in the extraction of ______.

Options

• iron

• copper

• aluminium

• zinc

Answer 1

Bassemerisation is used in the extraction of copper.

Explanation:

Bessemerisation is used in the extraction of copper from copper matte.

The following reactions takes place:

\[\ce{2FeS + 3O2 -> 2FeO + 2 SO2\uparrow}\]

\[\ce{FeO + SIO2 -> \underset{\text{(Slag)}}{FeSiO}}\]

\[\ce{2Cu2S + 3O2 -> 2Cu2O + 2SO2\uparrow}\]

\[\ce{2Cu2O + Cu2S -> 6Cu + SO2\uparrow}\]

The molten copper is allowed to cool. During cooling, dissolved SO₂ comes out in the form of blisters, so it is called blister copper.