Tag: extraction of copper and zinc from their oxides
Questions Related to extraction of copper and zinc from their oxides
Blister copper obtained during extraction from cuprous oxide is called so because:
Why is partial roasting of sulphide ore done in metallurgy of copper?
Blister copper is:
Following reactions take place during extraction of gold.
$4Au+8CN^-+2H _2O+O _2\rightarrow 4[Au(CN) _2]^-+4OH^-$
$2[Au(CN) _2]^-+Zn\rightarrow 2Au+[Zn(CN) _4]^{2-}$
Zinc in the extraction of gold acts as a/an:
Mark the incorrect statement.
Which of the following metals is extracted using a silica lined convertor?
Zinc is refined by :
The volatile impurities associated with zinc spelter are _______ .
Choose the odd one out :
A brown and bright element 'X' when heated in presence of air turns into black substance 'Y'. If hydrogen gas is passed over this heating material again 'X' is obtained 'X' and 'Y' are -