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In the extraction process of copper the ...

In the extraction process of copper the product obtained after carrying out the reactions
(i) `2Cu_2S+3O_2 rarr 2Cu_2O +2SO_2`
(ii) `2Cu_2O + Cu_2S rarr 6Cu+ SO_2` is called

A

Copper scrap

B

Blister copper

C

Copper matte

D

Reduced copper

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The following reactions take place during the extraction of copper from copper ore. (i) 2Cu_(2)S(l) + 3O_(2)(g) rarr 2Cu_(2)O(l) + 2SO_(2)(g) (ii) 2Cu_(2)O(l) + Cu_(2)S(l) rarr 6 Cu(l) + SO_(2)(g) Identify the oxidizing and reducing agents.

Justify that the reaction is a redox reaction. " "2Cu_(2)O(s)+Cu_(2)S(s) rarr 6Cu(s)+SO_(2)(g)

Which fo the following is true for the following reaction ? 2 Cu_2 O(s)+Cu_(2)S(s) rarr 6 Cu (s) + SO_2 (g) .

What is the valency of Cu in CuO and Cu_2O ?

The 'roasting' of 100.0 g of a copper ore yielded 71.8 g pure copper. If the ore is composed of Cu_(2)S and CuS with 4.5% inert impurity, calculate the percent of Cu_(2)S in the ore. The reactions are: Cu_(2)S+O_(2)rarr2Cu+SO_(2) and CuS+O_(2)rarrCu+SO_(2) [Atomic masses Cu=63.5m S=32] [Give answer exculuding decimal places]

Acetylene underset(O_2)overset(Cu^(2+)to The product formed in the reaction is

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