MetallurgyHard
Question
Among the following statements, the incorrect one is :
Options
A.calamine and siderite are carbonates
B.argentite and cuprite are oxides
C.zinc blende and iron pyrites are sulphides
D.malachite and azurite are ores of copper
Solution
(A) Calamine is ZnCO3 and siderite is FeCO3
(B) Argentite is Ag2S while cuprite is Cu2O
(C) Zinc blende is ZnS and iron pyrites is FeS2
(D) Malachite is CuCO3 Cu(OH)2 and azurite is 2CuCO3 Cu(OH)2
(B) Argentite is Ag2S while cuprite is Cu2O
(C) Zinc blende is ZnS and iron pyrites is FeS2
(D) Malachite is CuCO3 Cu(OH)2 and azurite is 2CuCO3 Cu(OH)2
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