(C) In a $ZnS$ structure, the anions $(B^-)$ form a $ccp$ lattice, and the cations $(A^+)$ occupy the tetrahedral voids.For a tetrahedral void, the li

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(C) In a $ZnS$ structure, the anions $(B^-)$ form a $ccp$ lattice, and the cations $(A^+)$ occupy the tetrahedral voids.For a tetrahedral void, the limiting radius ratio is given by $\frac{r_{A^+}}{r_{B^-}} = 0.225$.Given $r_{B^-} = 100 \, pm$.Therefore, $r_{A^+} = 0.225 \times 100 \, pm = 22.5 \, pm$.

Class 12 Chemistry Solid State Crystal structure and Coordination number

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$A$ solid $AB$ has a $ZnS$ type structure. If the radius of the $B^-$ ion is $100 \, pm$, what is the minimum radius of the $A^+$ cation in $pm$?

A
$192.3$
B
$414$
C
$22.5$
D
$44.4$

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$A$ solid $AB$ has a $ZnS$ type structure. If the radius of the $B^-$ ion is $100 \, pm$, what is the minimum radius of the $A^+$ cation in $pm$?

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$A$ compound $M_pX_q$ has a cubic close packing $(ccp)$ arrangement of $X$. Its unit cell structure is shown below. The empirical formula of the compound is:
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