JEE CHEMISTRY MCQ: SOLID STATE

1 Medium

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Analyzing +4 | -1

Assertion (A): In

{NaCl}

crystal each

{Na}^{+}

ion is touching

6 \, {Cl}^{-}

ions but these

{Cl}^{-}

ions do not touch each other.

Reason (R): The radius ratio is greater than 0.414 required for exact fitting.

View answer and explanation

Correct option: A

Both (A) and (R) are correct and (R) is the correct explanation of (A)

Option A is correct because in NaCl crystal, each Na+ ion is indeed touching 6 Cl- ions, and these Cl- ions do not touch each other due to the radius ratio being greater than 0.414, which is the correct explanation.

More Questions from SOLID STATE

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{CaF}_2

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{F}^{-}

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\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}

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