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Among the following statements, the incorrect one is :

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calamine and siderite are carbonate ores

argentite and cuprite are oxide ores

zinc blende and pyrites are sulphide ores

malachite and azurite are ores of copper

answer is B.

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Detailed Solution

Argentite and cuprite are not oxide ores. Hence Statements b is incorrect.

Since cuprite has the chemical formula ${Cu}_{2} O$ and argentite have the chemical formula ${Ag}_{2} S$ , argentite belongs to the group of sulphides, while cuprite is an oxide.

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