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Amoung the following statements, the inc...

Amoung the following statements, the incorrect statement is :

A

calamine and cerrusite are carbonate ores

B

rutile and cuprite are oxide ores

C

zinc blende and pyrites are sulphide ores

D

malachite and azurite are sulphate ores of Cu

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The correct Answer is:
D
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  3. Amoung the following statements, the incorrect statement is :

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  4. Give the correct order of initials T or F for following statements. Us...

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  5. Find the incorrectly matched pair ?

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  6. Froth floatation process used for the concentration of sulphide ore :

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  7. When ZnS and PbS minearls are present together, then NaCN is added to ...

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  8. Leaching of Ag(2)S is carried out by heating it with a dilute solution...

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  9. Leaching is commercially carried out for in the concentration of :

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  10. NaCN is sometimes added in the froth flotation process as a depressant...

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  11. Which of the following substance acts as collector in froth floatation...

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  12. In which of the following pair of metals, both are commercially extrac...

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  13. Formation of metallic copper from the sulphide ore in the commercial m...

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  14. There are following extraction process of silver but not:

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  15. In the extraction of aluminium Process X: employed for red bauxite t...

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  16. Give the correct order of initials T or F for following statements. Us...

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  17. FeCr(2)O(4)( chromite ) is converted to Cr by following steps : Chro...

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