Consider the following steps:
`Cu_(2)Soverset("roa st i n air")rarrAoverset("Heati ng without air")rarrB`
Which is not the correct statement?

Options

A. it is self-reduction
B. `A` is only `Cu_(2)O` and `B` is a mixture of `Cu`and `SO_(3)`
C. `A`is mixture of `Cu_(2)O`and `Cu_(2)S`and `B`is a mixture of `Cu`and`SO_(2)`
D. all statements are incorrect.

Answer

B

Explanation

Copper extraction
`{:(2Cu_(2)S+3O_(2),,rarr,,2Cu_(2)O+SO_(2)),(2Cu_2O+Cu_2S,,rarr,,6Cu+SO_(2)):}`