Roasted on one is mixed with coke and time stone and smelted in blast fumice. Which among the following does not represent the correct answer about the reactions taking place in the blast fumace.

Options

A. In the lower part, called zone of fusion temperature (1773 K) coke burns to `CO_(2)` producing 97000 calories of beat
B. In the middle part, limestone decomoses to give `Co_(2)` and lime which acts as a reducing agent.
C. in the middle part of the furnace called one of heat absorption (temperture 1073-1273 K) `CO_(2)` is reduced to CO
D. At the top is the one of reduction temperature (673-973 K). Here iron oxide is reduced to spongy iron by

Answer

B