The Bessemer converter is used in the manufacture of:

Identify $A$ and $B$ respectively in the following reactions:
$4 Au_{(s)} + 8 CN^{-}_{(aq)} + 2 H_2O_{(aq)} + O_{2(g)} \longrightarrow 4 A_{(aq)} + 4 OH^{-}_{(aq)}$
$2 A_{(aq)} + Zn_{(s)} \longrightarrow B_{(aq)} + 2 Au_{(s)}$

In the isolation of which one of the following metals from their ores,is the use of cyanide salt not commonly involved?

From the Ellingham graphs on carbon,which of the following statements is false?

Suggest a list of metals that are extracted electrolytically.

In the electrolytic method of obtaining aluminium from purified bauxite,cryolite is added to the charge in order to