What is copper matte?

In reverberatory furnace how Cu is extracted from copper matte? Write various reactions?

Why is copper sulphate pentahydrate coloured?

Why Copper matte is put in Silica lined converter?

Describe the role of SiO_2 in the extraction of Copper from Copper matte.

What type of oxide is copper oxide?

What happens when Iron nails are placed in copper sulphate solution? Write word equations of the reactions involved.

Two wires of same radius and legth are subjected to the same load . One wire is of steel an the other is of copper . If the young modulus of steel is twice that of copper find the ratio of elastic energy stored per unit volume in steel to that of copper .