Purification And Characterisation Of Organic Compounds Question 167
Question: When copper pyrites is roasted in excess of air, a mixture of $ CuO+FeO $ is formed. $ FeO $ is present as impurity. This can be removed as slag during reduction of $ FeO $ . The flux added to form slag is
Options:
A) $ SiO_2 $ which is an acidic flux
B) Limestone, which is a basic flux
C) $ SiO_2 $ which is the basic flux
D) CaO, which is a basic flux
Show Answer
Answer:
Correct Answer: A
Solution:
[a] $ FeO+SiO_2\xrightarrow{{}}FeSiO_3.$
BETA
