Question

Which of the following fluxes is used to remove acidic impurities in metallurgical process [KCET (Med.) 2001]
A) Silica B) Lime stone C) Sodium chloride D) Sodium carbonate

Answer 1

B) LIME STONE

is the right answer

Answer 2

Answer: Option (B) is the correct answer.

Explanation:

Metallurgy is a process in which metals are heated to give them desired shape or properties.

Whereas flux is a chemical chleaning agent which helps to clean the metal(s) so that it becomes suitable and better for use.

Limestone has chemical formula $CaCO_{3}$ and it acts like a flux to remove acidic impurities in metallurgical process.

Thus, we can conclude that out of the given options limestone acts as a flux to remove acidic impurities of metals.