Purification And Characterisation Of Organic Compounds Question 182
Question: In the extraction of copper from its sulphide ore, the metal is finally obtained by the reduction of cuprous oxide with:
Options:
A) Copper (I) sulphide $ (Cu_2S) $
B) Sulphur dioxide $ ( SO_2 ) $
C) Iron sulphide $ ( FeS ) $
D) Carbon monoxide (CO)
Show Answer
Answer:
Correct Answer: A
Solution:
Cuprous oxide formed during roasting of cuprous sulphide is mixed with few amount of cuprous sulphide and heated in a reverberatory furnace to get metallic copper.
$ 2Cu_2O+Cu_2S\to 6Cu+SO_2 $