Copper is the most noble among the first row transition metals and occurs in small deposits in several countries. Ores of copper include chalcopyrite

Copper is the most noble among the first row transition metals and occurs in small deposits in several countries. Ores of copper include chalcopyrite `(CuFeS_(2))`, cuprite `(Cu_(2)O)`, copper glance `(Cu_(2)S)` and malachite `[CyCO_(3).Cu(OH)_(2)]`. However 80% of the world copper production comes from the ore chalcopyrite `(CuFeS_(2))`. the extraction of copper from chalcopyrite involves partial roasting , removal of ironand self-reduction.
Partial roasting of chalcopyrite produces
A. `Cu_(2)S` and FeO
B. `Cu_(2)` and FeO
C. CuS and `Fe_(2)O_(3)`
D. `Cu_(2)O " and " F_(2)O`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

Correct Answer - A
`2CuFeS_(2)+4O_(2) overset("heat") to Cu_(2)S+2FeO+3SO_(2)`

4 views Answered 2023-02-05 15:29

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