Question
Chemistry Question on General Principles and Processes of Isolation of Elements
Which one of the following statements is false?
A
During roasting, moisture is removed from the ore
B
The ore is freed from almost all non-metallic impurities
C
Calcination of ore is carried out in the absence of any blast of air
D
The concentrated zinc blende is subjected to calcination during its extraction by pyrometallurgy.
Answer
The concentrated zinc blende is subjected to calcination during its extraction by pyrometallurgy.
Explanation
Solution
In pyrometallurgy of Zn,ZnS is subjected to roasting.