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The green mass formed when copper is exp...

The green mass formed when copper is exposed to moist air has the same composition as that of

A

Azurite

B

Malachite

C

Cuprite

D

Copper pyrites

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The correct Answer is:
B
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AAKASH SERIES-PRINCIPLES OF METALLURGY-PRACTICE EXERCISE
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  9. Magnesium oxide is reduced in the Hansging method using

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  10. The green mass formed when copper is exposed to moist air has the same...

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  11. The process of bringing the metal or its ore into solution by the acti...

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  12. Zr + 2I2 to Zr I4 overset(1800k) to Zr + 2I2 This sequence ...

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  13. Some statements about Ellingham diagram a) Increase in the slope of th...

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  14. The metal that can be obtained even by the electrolysis of its aqueous...

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  15. the most electropositive metals are isolated from their ors by

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  16. In order to refine blister copper it is melted in a furnance and is st...

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  17. Electric furnaces are lined with magnesia because

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  18. The separation of lanthanoids by the ion exchange method is based on

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