Purification And Characterisation Of Organic Compounds Question 122
Question: Heating mixture of $ Cu_2O $ and $ Cu_2S $ will give
[AIEEE 2005]
Options:
A) $ Cu+SO_2 $
B) $ Cu+SO_3 $
C) $ CuO+CuS $
D) $ Cu_2SO_3 $
Show Answer
Answer:
Correct Answer: A
Solution:
$ Cu_2S+2Cu_2O\to 6Cu+SO_2 $ (Auto-reduction).
This reaction occurs in reverberatory furnace to get metallic copper.