Question

By which process Pb and Sn are extracted respectively are:
A. Carbon reduction : Self reduction
B. Self reduction : Carbon reduction
C. Electrolytic reduction : Cyanide process
D. Cyanide process : Electrolytic reduction

Answer 1

Correct Answer - B
`2PbS+3O_(2)to 2PbO+2SO_(2)`
`2PbS+PbS to 3Pb+SO_(2),`
`SnO_(2)+2Coverset(Delta)rarrunderset("Carbon reduction ")(Sn+2CO)uarr`