Assertion: Zone refining method is very useful for producing
Reason: Semiconductors are of high purity.
(i) Both assertion and reason are true and the reason is the correct explanation
(ii) Both assertion and reason are true but the reason is not the correct explanation
(iii) The assertion is true but the reason is false.
(iv) The assertion is false but the reason is true.
(v) Assertion and reason both are wrong.
Option (ii) is correct.