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Zinc Ion

State whether...

Question

State whether the statement is true or false.

$N a_{2} C O_{3}$ is thermally stable but $L i_{2} C O_{3}$ is not.

A

True

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B

False

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Solution

The correct option is A True
$N a_{2} C O_{3}$ is thermally stable but $L i_{2} C O_{3}$ is unstable and decomposes without heating to form carbon dioxide and lithium oxide.

This is due to the large size difference, the polarization of the carbonate ion and the covalent nature of the compound.

$L i_{2} C O_{3} Δ - \to L i_{2} O + C O_{2}$

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