Purification And Characterisation Of Organic Compounds Question 120
Question: How is limestone used in Fe extraction
[Orissa JEE 2004]
Options:
A) Oxidation of Fe ore
B) Reduction of Fe ore
C) Formation of slag
D) Purification of Fe formed
Show Answer
Answer:
Correct Answer: C
Solution:
Lime stone $ (CaCO_3) $ is used for formation of slag in Fe extraction $ \underset{\text{Lime stone}}{\mathop{CaCO_3}}\xrightarrow{{}}CaO+CO_2\uparrow $
$ CaO+\underset{\begin{smallmatrix} Gangue \\ or \\ impurity \end{smallmatrix}}{\mathop{SiO_2}}\xrightarrow{{}}\underset{slag}{\mathop{CaSiO_3}} $
BETA
