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MEDIUMMCQ SINGLENEET ChemistryInorganic ChemistryMetallurgySnO ->Cassiterite

Silver can be separated from lead by:

A.fractional crystallisation
B.amalgamation✓ Correct
C.cupellation
D.Hall Heroult Process
Explanation

It is the process where ores are treated under high temperatures and pressure to separate noble metals like gold and silver, from base metals like led, copper, zinc, and others present in the ore or alloyed metal is called cupellation. 77. The methods chiefly used for the extraction of lead and tin from their ores are respective (a) self reduction and carbon reduction (b) self reduction and electrolytic reduction (c) carbon reduction and self reduction (d) cyanide process and carbon reduction The extraction of lead is done by self-reduction. The reaction is given below: 2 2 2PbS+3O 2PbO+2SO

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