1.

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

Answer»

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



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