Among following statemetns, incorrect one is :

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General Principles and processes of Isolation of Elements

easy

Among the following statemetns, the incorrect one is :

A

Calamine and siderite are carbonates

B

Argentite and cuperite are oxides

C

Zinc blende and iron pyrites are sulphides

D

Malachite and azurite are ores of copper

Solution

Cuprite $Cu _2 O$ and argentite $Ag _2 S$.

Calamine $ZnCO _3$ and siderite $FeCO _3$.

Zinc Blende $ZnS$ and pyrites $FeS _2$.

Malachite $CuCO _3 \cdot Cu ( OH )_2$ and azurite $Cu _3\left( CO _3\right)_2( OH )_2$.

Standard 12

Chemistry

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