An AB 2 type structure is found inA- CaF 2B- N 2 OC- NaClD- Al 2 O 3

⇒ AB_2 type structure (fluorite type) ⇒ CaF_2 ⇒ Ca^2+ forms ccp arrangement. ⇒ It covers corners and face centres. ⇒ F^ ions are located such that 4 Ca^2+ io ...

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Standard XII

Chemistry

Examples of Ionic Compounds

An AB 2 type ...

Question

An $A B_{2}$ type structure is found in

$N a C l$

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$A l_{2} O_{3}$

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$C a F_{2}$

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$N_{2} O$

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Solution

The correct option is C
$C a F_{2}$

$\Rightarrow A B_{2}$ type structure (fluorite type)
$\Rightarrow C a F_{2} \Rightarrow C a^{2 +}$ forms ccp arrangement.
$\Rightarrow$ It covers corners and face centres.
$\Rightarrow F^{-}$ ions are located such that $4 C a^{2 +}$ ions are around it.
It can be said that they occupy tetrahedral sites.

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An AB2 type structure is found in

The correct option is C CaF2 ⇒AB2 type structure (fluorite type) ⇒CaF2⇒Ca2+ forms ccp arrangement. ⇒ It covers corners and face centres. ⇒F− ions are located such that 4Ca2+ ions are around it. It can be said that they occupy tetrahedral sites.

An $A B_{2}$ type structure is found in