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Redox Reactions question

2025 · Q99
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Redox Reactions question

2025 · Q99

NEETChemistryRedox ReactionsMCQ+4 / −1

Consider the following compounds :

KO‾2,H2O‾2{\mathrm{K\underline{O}}}_2, \mathrm{H}_2 \underline{\mathrm{O}}_2KO​2​,H2​O​2​ and H2S‾O4\mathrm{H}_2 \underline{S }O_4H2​S​O4​

The oxidation state of the underlined elements in them are, respectively,

  1. A
    +1,−2+1,-2+1,−2, and +4
  2. B
    +4,−4+4,-4+4,−4, and +6
  3. C
    +1,−1+1,-1+1,−1, and +6
  4. D
    +2,−2+2,-2+2,−2, and +6
View written solutionFree

Correct answer: C

$\mathrm{KO}_2 \rightarrow$ Alkali metal always shows +1 oxidation state. Therefore oxidation state of K is +1 .

NEET 2025 Chemistry - Redox Reactions Question 1 English Explanation 1
Oxidation state of oxygen in $\mathrm{H}_2 \mathrm{O}_2$ is -1

NEET 2025 Chemistry - Redox Reactions Question 1 English Explanation 2
Oxidation state of sulphur in $\mathrm{H}_2 \mathrm{SO}_4$ is +6 .

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