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JEE CHEMISTRY MCQ: SOLID STATE

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Which one of the following is a covalent crystal?

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Correct option: C

Quartz

Option C (Quartz) is correct because Quartz (

\mathrm{SiO}_2

) forms a giant network of covalently bonded atoms, making it a covalent crystal.

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{CaF}_2

, fluorite type structure,

{F}^{-}

ions occupy Consider a body centred cubic (BCC) arrangement, let

\mathrm{d}_{\mathrm{e}}

\mathrm{d}_{\mathrm{fd}}, \mathrm{d}_{\mathrm{bd}}

be the distances between successive atoms located along the edge, the face-diagonal, the body diagonal respectively in a unit cell. Their order is given by - A mineral having the formula

\mathrm{AB}_2

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\mathrm{A}

atoms occupying the lattice points. Pick out the correct statements of the following Which one of the following metal oxides is antiferromagnetic in nature? Wax is an example of : The following is not a function of an impurity present in a crystal