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Home
All Subjects
CSS
CSS MPT
CSS Subjects MCQs
CSS Past Papers
Past Papers
Testing Agencies Papers
Departmental Past Papers
Post Wise Papers
Service Related MCQs
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FPSC
PPSC
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Current Affairs
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Subject:
Physics
Semi-conductor germanium and silicon are_________________?
A.
pentavalent
B.
trivalent
C.
divalent
D.
tetravalent
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