NEET UG CHEMISTRY MCQ: SOLID STATE

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The closest distance between the centres of two molecules of a gas taking part in collision is called

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Correct option: C

Both (1) and (2)

Option C (Both (1) and (2)) is correct because both "Effective molecular diameter" and "Collision diameter" refer to the closest distance between the centers of two colliding gas molecules.

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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,