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.