Which of the following is not a thermal decomposition reaction?


2H2O ------> 2H2 + O2

2FeSO4 --------> Fe2O3 + SO2 + SO3

ZnCO3--------> ZnO + CO2

2KClO3 ---------> 2KCl + 3O2

Dear student ,
The reaction given in the first option is an example of electrical decomposition or electrolysis .
Regards

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