Question

The main reactions occurring in the blast furnace during extraction of iron from haematite are ________.

• A. $F{e}_2{O}_3+3CO\to 2Fe+3C{O}_2$
• B. $F{e}_2{O}_3+3C\to 2Fe+3CO$
• C. $CaO+Si{O}_2\to CaSi{O}_3$
• D. $Fe+3C\to 2FeSi{O}_3$

Answer 1

Answer: (A), (C)

$CaO+Si{O}_2\to CaSi{O}_3$

Correct Answer- Option A and D

Analysing reactions in blast furnace

A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals, generally, pig iron, but also others such as lead or copper.

$F{e}_2{O}_3+3CO\to 2Fe+3C{O}_2$

The main chemical reaction producing the molten iron is:

The calcium oxide with various acidic impurities(silica) in the iron form a calcium silicate (CaSiO₃).

$CaO+Si{O}_2\to CaSi{O}_3$

Analysing the options

The main reactions occurring in the blast furnace during extraction of iron from haematite are:

$F{e}_2{O}_3+3CO\to 2Fe+3C{O}_2$

$CaO+Si{O}_2\to CaSi{O}_3$

Hence, the correct options are (A) and (D).