Pb and Sn are extracted from their chief ore by

Options

A. Carbon reduction and self reduction respectively
B. Self reduction and carbon reduction respectively
C. Electrolysis and self reduction respectively
D. Self reduction and electrolysis respectively

Answer

B

Explanation

Tin can be extracted only by carbon reduction method, while lead can be extracted by self as well as carbon reduction methode.
`SnO_(2) + C to Sn +CO_(2) uarr`
`PbS + 2PbO to 3PbO + SO_(2)`