CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
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Among the following statements the incorrect
one is :
1 Calamine and siderite are carbonates.
2 Argentite and cuprite are oxides.
3 Zinc blende and iron pyrites are sulphides.
4 Malachite and azurite are ores of copper.
Explanation:
Cuprite is and Argentite is .