Pb and Sn are extracted from their chief ore by
Self reduction and carbon reduction
PbO and PbSO4 get reduced by PbS itself which is already present in mixture, because the reduction takes place by mixture itself, hence is known as self reduction
When a metal is to be extracted its ore, if the gangue associated with the ore is silica, then
Which statement is correct?
Flux is used to remove
The final step for the extraction of copper from copper pyrite in Bessemer converter involves the reaction.
Auto-reduction process is used in the extraction of
Among the following groups of oxides, the group containing oxides that cannot be reduced by carbon to give the respective metal is
van-Arkel method of purification of metals involves converting the metal to a
A metal which is refined by poling is
Wolframite ore is separate from tin stone ore by the process of
‘Lapis-Lazuli’ is a blue coloured precious stone. It is mineral of the class