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Coordination and Oxidation Number

Which of the ...

Question

Which of the following is incorrect about $N a C l$ structure?

Nearest neighbours of

N a^{+}

ion is six

C l^{-}

ion

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N a^{+}

ions make FCC lattice

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Cl−Cl− ion packed in cubic close packed arrangement

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There are eight next nearest neighbours of

N a^{+}

ion

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Solution

The correct option is D There are eight next nearest neighbours of $N a^{+}$ ion
$N a C l$ structure is a lattice structure in which $C l^{-}$ ion is CCP(FCC) lattice and $N a^{+}$ ions make BCC [Body centre] lattice.
Each $N a^{+}$ ion is surrounded by $6$ $C l^{-}$ ions.

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Similar questions

N a^{+}

C l^{-}

N a^{+}

N a^{+}

C l^{-}

N a^{+}

{N a}^{+}

{C l}^{-}

{N a}^{+}

In which of the following structures coordination number for cations and anions in the packed structure will be same ?

(a) $C l^{-}$ ions form fcc lattice and $N a^{+}$ ions occupy all octahedral voids of the unit cell

(b) $C a^{2 +}$ ions form fcc lattice and $F^{-}$ ions occupy all the eight tetrahedral voids of the unit cell

(d) $S^{2 -}$ ions form fcc lattice and $Z n^{2 +}$ ions go into alternate tetrahedral voids of the unit cell

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