1.

Blister copper obtained during extraction from cuprous oxide is called so because

Answer»

it has blister like eruptions due to evolution of GAS.
it has a shining SURFACE like blister
it is the most impure FORM of copper
its surface is uneven due to different thickness at different places.

Solution :Solified copper obtained is called blister copper since it has BLISTERED appearance due to the evolution of sulphur DIOXIDE gas.
`2Cu_(2)O + Cu_(2)S to 6Cu + SO_(2)`


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