Common Processes Used in Extraction of Metals

What is metallurgy?

Which type of ores are concentrated by Froth flotation process?

A substance which reacts with gangue to form fusible material is called

Which of the following is acidic flux?

Removal of impurities from ore is known as

Flux is formed by the combination of slag and gangue.

During the extraction of iron from haematite ore,

$\mathrm{CaO}+{\mathrm{SiO}}_2\to {\mathrm{CaSiO}}_3$

Here, ${\mathrm{CaSiO}}_3$ is the ____ formed.

Flux is used to

In the metallurgy of iron, when limestone is added to the blast furnace, the calcium ions end up in

In metallurgy, flux is a substance used to convert:

An ore after levigation is found to have basic impurities. Which of the following can be used as flux during smelting?

An ore after levigation is found to have basic impurities. Which of the following can be used as flux during smelting ?
 

Magnesium oxide is used for the lining in steel making furnace because

The function of flux during the smelting of the ore is .......

The flux used in extraction of iron from Hematite in the blast furnace is

Flux added in the extraction of iron is

Which is not basic flux

The substance which is mixed with the ore for removal of impurities is termed as

The function of flux during smelting of ores is to

Which is one of the following an acidic flux?