1.

Which of the following reaction takes place in blast fumace during extraction of copper ?

Answer»

`2Cu_(2)S+3O_(2) to 2Cu_(2)O+2SO_(2)`
`2FeS+3O_(2) to 2FeO+2SO_(2)`
`2Cu_(2)O+Cu_(2)S to 6 Cu+SO_(2)`
All of these

Answer :D


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