Purification And Characterisation Of Organic Compounds Question 176

Question: In the manufacture of iron from haematite, the function of lime stone is as

[CPMT 1988; MP PET 1991, 93, 95]

Options:

A) A reducing agent

B) Flux

C) Slag

D) Gangue

Show Answer

Answer:

Correct Answer: B

Solution:

$ CaCO_3\to CaO+CO_2 $ ; $ \underset{Flux}{\mathop{CaO}}+\underset{\begin{smallmatrix} Impurityof \\ haematite \end{smallmatrix}}{\mathop{SiO_2}}\to \underset{Slag}{\mathop{CaSiO_3}} $