Which of the following reactions is not a red | vedclass

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Question

(A) redox reaction involves a change in the oxidation state of the elements involved. In the reaction $CaCO_3 	o CaO + CO_2$,the oxidation states are

Vedclass · Accepted Answer

$CaCO_3 	o CaO + CO_2$

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(A) redox reaction involves a change in the oxidation state of the elements involved. In the reaction $CaCO_3 	o CaO + CO_2$,the oxidation states are: $Ca: +2, C: +4, O: -2$ in $CaCO_3$,$Ca: +2, O: -2$ in $CaO$,$C: +4, O: -2$ in $CO_2$. Since there is no change in the oxidation states of any element,this is a thermal decomposition reaction,not a redox reaction. In other options $(B, C, D)$,the oxidation states of the elements change,indicating they are redox reactions.

Which of the following reactions is not a redox reaction?

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