The impurity present in Blister copper is:

F e S

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C u_{2} O

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C u_{2} S

No worries! We‘ve got your back. Try BYJU‘S free classes today!

F e O

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A $C u_{2} O$
For the extraction of copper from it's ore, the following processes takes place:
1) The ore is heated in a reverberatory furnace after mixing with silica. In the furnace, iron oxide slags of an iron silicate and copper is produced in the form of copper matte. This contains $C u_{2} S$ and $F e S$ .

2) Copper matte is then charged into silica lined convertor. Some silica is also added and hot air blast is blown to convert the remaining $F e S, F e O, C u_{2} O / C u_{2} S$ to the metallic copper.

The following reactions take place:
$2 F e S + 3 O_{2} \to 2 F e O + 2 S O_{2}$
$F e O + S i O_{2} \to F e S i O_{3}$
$2 C u_{2} S + 3 O_{2} \to 2 C u_{2} O + 2 S O_{2}$
$2 C u_{2} O + C u_{2} S \to 6 C u + S O_{2}$

The solidified copper obtained has blistered appearance due to the evolution of $S O_{2}$ and so, it is called blister copper.

According to the reactions, it has $C u_{2} O$ impurities.

Suggest Corrections

Similar questions

Q. The

C u_{2} O

impurity present in blister copper is removed by:

When copper pyrite is roasted in excess of air, a mixture of $C u_{2} S$ and $F e O$ are formed. FeO is present as impurity. This can be removed as slag during Smelting. The flux added to form slag is

Name the process used for the formation of blister $C u$ by following reaction :(unbalanced reactions)

$2 C u_{2} S + 3 O_{2} \to C u_{2} O + S O_{2}$

C u_{2} O + C u_{2} S \to C u + S O_{2}

Q. In Bessemer converter,

C u_{2} S

is converted to blister copper by:

Q. A sample of impure cuprite,

C u_{2} O

, contains 66.6% copper. What is the percentage of pure

C u_{2} O

in the sample:

Join BYJU'S Learning Program