Assertion : Zonerefiningmethodisveryusefulfor producingsemiconductors. – InterviewSolution

1.	Assertion : Zonerefiningmethodisveryusefulfor producingsemiconductors. Reason: Semiconductors areofhighpurity.
Answer» Bothassertionandreason aretrueandreason is thecorrectexplanationofassertion. Both assertionandreasonaretruebutreasonis not thecorrectexplanationofassertion. Assertionistrue butreasonisfalse. Assertionis falsebutreasonistrue. SOLUTION :CORRECT EXPLANATION. Inthezonerefiningmethod,the meltis allowedto CRYSTALLIZE. Sinceimpurities are moresolubleinthemeltthan in thepurestateofthemetal,THEREFORE , ultrapuresemiconductormetalsare obtainedafter repeatedcrystallizations.

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