NEET UG CHEMISTRY MCQ: SOLID STATE

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p-type semiconductor is formed when germanium is doped with

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Correct option: C

Aluminium

Option C (Aluminium) is correct because Aluminium is a trivalent impurity, and doping Germanium with a trivalent impurity creates a p-type semiconductor.

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Schottky defect in crystals is observed when Calculate the ionic radius of a

\mathrm{C}{\mathrm{s}^ + }

ion, assuming that the cell edge length for CsCl is 0.4123 nm and that the ionic radius of a

\mathrm{C}{\mathrm{I}^ - }

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\;0.181\,\,nm

Wrong match is A molecule contains atoms

A

and

B

such that

A

occurs at the corners of the cube and

Y

at the face centres. The formula of the molecule is Which species is diamagnetic ? The arrangement ABCABC……is referred to as,