Metallurgy OF Zn,Sn,Au,Ag

Metallurgy OF Silver (Ag)

In the metallurgy of Zn the Zn dust obtained from roasting and reduction of zinc sulphide contains some ZnO. It is removed by

How mant metals are commercially extracted by pyrometallurgy from the given metal ? Cu, Fe, Sn, Au, K, Na .

Arrange Ca,Zn,Ba,Fe,Au,Ag and Cu in order of decreasing reactivity.

How many of the following metals is extracted by self reduction process? Pb,Au,Mg,Sn,Fe,Al,Ag,Hg,Na,Zn,Cu,Ca