D-And F-Block Elements Ques 226
Question: Silica is added to roasted copper ore during smelting in order to remove
[KCET 1998]
Options:
A) Cuprous sulphide
B) Cuprous oxide
C) Ferrous oxide
D) Ferrous sulphide
Show Answer
Answer:
Correct Answer: C
Solution:
$ \underset{Impurity}{\mathop{FeO}},+\underset{Flux}{\mathop{SiO_2}},\to \underset{Slag}{\mathop{FeSiO_3}}, $
