A metallic carbonate stable towards heat is: a- Cuco3 b-Znco3 c-na2co3

1.	A metallic carbonate stable towards heat is: a- Cuco3 b-Znco3 c-na2co3 d-caco3
Answer» $Na_{2}CO_{3}$ : Sodium Carbonate is a metallic carbonate stable towards heat. Sodium carbonate is a metallic carbonate formed by group 1 element of the modern periodic table. It is thermally stable and doesn't undergo any decomposition in presence of heat. This is mainly DUE to small size of sodium ion ALONG with ELECTROPOSITIVITY which results in a high lattice enthalpy. Hence , it is thermally stable. However the other metallic carbonates given in the options undergo THERMAL decomposition to PRODUCE metallic oxides. For example: $\boxed{\sf{ZnCO_{3}\overset{\Delta}{\longrightarrow}ZnO + CO_{2}}}$ Hope It Helps.

A metallic carbonate stable towards heat is: a- Cuco3 b-Znco3 c-na2co3 d-caco3

Answer»

$Na_{2}CO_{3}$ : Sodium Carbonate is a metallic carbonate stable towards heat.

Sodium carbonate is a metallic carbonate formed by group 1 element of the modern periodic table.

It is thermally stable and doesn't undergo any decomposition in presence of heat.

This is mainly DUE to small size of sodium ion ALONG with ELECTROPOSITIVITY which results in a high lattice enthalpy.

However the other metallic carbonates given in the options undergo THERMAL decomposition to PRODUCE metallic oxides.

For example:

$\boxed{\sf{ZnCO_{3}\overset{\Delta}{\longrightarrow}ZnO + CO_{2}}}$

Hope It Helps.