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The heating process for the extraction o...

The heating process for the extraction of elements are quite old but highly acceptable method for the extraction of elements. Because in this process the elements produced is in the highly pure state. Mostly `As, Sb, N_2 Ni, Zr, B` etc are prepared by this principle.
A number of metal sulphide uses which may be roasted first in air to partially convert them to the oxide, and then further roasted in the absence of air, causing self reduction.

A

Cus

B

PbS

C

FeS

D

`Sb_(2)S_(3)`

Text Solution

Verified by Experts

The correct Answer is:
C
FeS
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