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Assertion: Silica is added as a flux in ...

Assertion: Silica is added as a flux in reverberatory furnace, in the extrcation of copper from copper phyrites.
Reason: Silica decreases the melting point of the ore and increases the conductivity.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If assertion is false but reason is true.

Text Solution

Verified by Experts

The correct Answer is:
C
Assertion: `FeO +SiO_(2)rarr FeSiO_(3)`.
Reason: Reason is incorrect as `SiO_(2)` is a covalent compound and thus does not ionise to give ions responsible for conducting the electric current.
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