NEET UG CHEMISTRY MCQ: SOLID STATE

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In face centred cubic unit cell edge length is

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Correct option: D

\frac{4}{{\sqrt 2 }}r

Option D (

\frac{4}{{\sqrt 2 }}r

) is correct because in a face-centered cubic (FCC) unit cell, the atoms touch along the face diagonal, and the relationship between the edge length (a) and the atomic radius (r) is

a = \frac{4r}{\sqrt{2}}

More Questions from SOLID STATE

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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}^ - }

ion is

\;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,