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Lead obtained from galena ore (PbS) by a...

Lead obtained from galena ore `(PbS)` by air reduction or carbon reduction process contains base metal `(cu, Bi, As, Sn,Zn)` as impurities.
Gelatin acts as addition agent in electrolysis of `Pb`. In the presence of gelatin, `Pb` becomes.

A

Hard and brittle

B

Soft and useless

C

Smooth and uniform

D

Only brittle

Text Solution

Verified by Experts

The correct Answer is:
C
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