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Lead obtained form galena (PbS) by air r...

Lead obtained form galena `(PbS)` by air reduction or carbon reduction process contains base metal `(Cu, Bi, Sn, As)` as impurities, due to the which lead becomes hard and brittle.
Parke's process is also called.

A

Softening process

B

Desilverisation method

C

Cupellation

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
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