Question

Name the one of mercury with the help of
balanced chemical equation explain the
Process of extraction of mercury from its ore
​

Answer 1

The ore of Mercury is known as Cinnabar.

When cinnabar (HgS) is heated in air it is first converted into mercuric oxide (HgO). Mercuric oxide is then reduced to mercuric on further heating.

BALANCED CHEMICAL EQUATION :

2Hgs(s) + 3O2(g) --heat---> 2HgO(s) + 2SO2 (g)

2HgO ---Heat---> 2Hg(l) + O2 (g)

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Answer 2

Cinnabar (HgS)

By roasting and then self reduction

2HgS+3O2 heat --> 2HgO+2SO2

2Hgo heat -->2Hg+O2

Reaction of Fe2O3 with Al is used to join railway tracks and machine parts as it is exothermic. 

This reaction is known as thermit reaction.  

Fe2O3 + 2Al → 2Fe + Al2O3 + Heat 

The amount of heat evolved is so large that the 

metal (Fe) is produced in the molten state. 

Extraction of Mercury. Most of the world's mercury is obtained from its main ore, cinnabar or vermillion with the chemical structure mercury sulphide (HgS). Cinnabar is usually found in a massive or granular form but can also occur as small crystals shown below.