1.

Copper is extracted from its ore copper pyrite throupgh the scheme given below : {:("Copper pyrite" overset("Roasting")to ubrace(X+Y) + SO_2uarr),(""+underset("flux")("Coke") darr "smelting"):} underset("Copper metal")("Crude") overset("Bessemerisation")larr "Molten matte slag" THe Compound X and Y are respectively.

Answer»

`Cu_2S and FEO` 
`Cu_2S and Fe_2O_3`
`Cu_2S and FES`
`CUS and Fes`

ANSWER :C


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