Pyrometallurgical method used for the extraction of copper from sulphide ore:

is a dry method

involves concentration by leaching the sulphide ore with dil.

H_{2} S O_{4}

involves concentration of the sulphide ore by froth flotation process

statement given in (b) is incorrect

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Text solutionVerified

The copper is extracted from sulphide ore by pyrometallurgy which involves reduction of the concentrated ore at high temperature.
This process is a dry process.
In this process, the sulphide ore is concentrated by froth floatation process.
In this process, the sulphide ore is not concentrated by leaching with dil sulphuric acid.
Thus, the statement B is incorrect and the statement A and C are correct.

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