Question

Among the following statements the incorrect one is:

• 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.

Hint:

Remember common ores with their chemical nature.

Answer 1

The Correct Option is B

- Calamine (ZnCO₃) and siderite (FeCO₃) are carbonates. - Argentite (Ag₂S) is a sulphide, while cuprite (Cu₂O) is an oxide → statement is incorrect. - Zinc blende (ZnS) and iron pyrites (FeS₂) are sulphides. - Malachite and azurite are copper carbonates.