Calamine ore can be used to extract one of the following metals. This metal is: (a) copper (b) mercury (c) aluminium (d) zinc
(d) Zinc. Calamine is an ore of zinc and its compound is zinc carbonate (ZnCO3).
(a) Name the method by which aluminium metal is extracted. (b) Give the name and chemical formula of one ore of copper. (c) How is zinc extracted from its carbonate ore (calamine) ? Explain with equations.
The two metals which can be extracted just by heating their sulphides in the air are: (a) sodium and copper (b) copper and aluminium (c) potassium and zinc (d) mercury and copper
Give one use each of the following metals:
(a) Iron (b) Copper (c) Aluminium (d) Zinc (e) Mercury
Which metal can be extracted from each one of the following ores:
(a) bauxite (b) calamine (c) haematite.
For how many of the following ores calcinations is done during extraction of metals?___ (a) Haematite (b) Calamine (c) dolomite (d) bauxite (e) zinc blende