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Introduction to d and f Block Elements

" Na2O is mo...

Question

" $N a_{2} O$ is more stable than $N a_{2} C O_{3}$ ."
Answer whether the above statement is true or false. If true enter 1, else 0

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Solution

$N a_{2} O$ is less stable than $N a_{2} C O_{3}$ .
$N a^{+}$ ion is larger in size and $O^{2 -}$ ion is smaller in size.
Hence the packing is less efficient and the lattice formed is less stable.
On the other hand, $N a^{+}$ ion and $C O_{3}^{2 -}$ are of comparable size.
Hence, the packing is efficient and the lattice formed is stable.

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