Practice free Redox Reactions (Chemistry) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Which reaction is NOT a redox reaction?
(A) is a simple double-displacement reaction; oxidation states do not change.
Consider the following compounds: $\underline{\text{K}}\text{O}_2$, $\text{H}_2\underline{\text{O}}_2$ and $\text{H}_2\underline{\text{S}}\text{O}_4$. The oxidation states of the underlined elements in them are, respectively:
In $\text{KO}_2$, K is +1; in $\text{H}_2\text{O}_2$, O is −1; in $\text{H}_2\text{SO}_4$, S is +6.
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