Question

A product of coal used in the extraction of iron from iron oxide in a blast furnance , is​

Answer 1

Answer:

coke

The common ores of iron are both iron oxides, and these can be reduced to iron by heating them with carbon in the form of coke. Coke is produced by heating coal in the absence of air. Coke is cheap and provides both the reducing agent for the reaction and also the heat source - as you will see below.