Chemistry
(a) Name an ore of zinc
(b) Which process is applied to concentrate it?
(c) How is concentrated ore changed to oxide?
Related Questions
What do you observe when hydrogen is passed over heated copper oxide?
Compare roasting and calcination.
(a) Some metallic oxides can be reduced by hydrogen, carbon, carbon monoxide and some cannot. Explain.
(b) Write balanced equation for the reduction of copper (II) oxide by hydrogen.
How are the following metallic oxides reduced. Write equations :
(a) Iron (II) oxide
(b) Zinc oxide