Question

In the manufacture of iron from haemetite, lime stone is added to act as _______________.

• A. flux
• B. slag
• C. a reducing agent
• D. an oxidising agent

Answer 1

The correct option is A flux

The flux used in the extraction of iron from haematite in the blast furnace is a basic flux, lime stone ($CaC{O}_3$). $C{a}_3(P{O}_4{)}_2$ present in lime stone reacts with $Si{O}_2$ to produce slag.

Option A is correct.