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Chemistry
An ore after levigation is found to have acidic impurities. Which of the following can be used as flux during smelting operation?
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Q. An ore after levigation is found to have acidic impurities. Which of the following can be used as flux during smelting operation?
NTA Abhyas
NTA Abhyas 2022
A
$H_{2}SO_{4}$
B
$CaCO_{3}$
C
$SiO_{2}$
D
Both B and C
Solution:
$CaCO_{3}$ on heating gives CaO, which is basic in nature. It can react with acidic impurities to form slag.