Chemistry · Electronic concepts of oxidation and reduction, redox reactions, oxidation number, rules for assigning oxidation number and balancing of redox reactions

Assertion Spectator ions are the species that are present in the solution but do

Assertion Spectator ions are the species that are present in the solution but do not take part in the reaction. Reason The phenomenon of formation of \( \boldsymbol{H}_{2} \boldsymbol{O}_{2} \) by the oxidation of \( H_{2} O \) is known as auto-oxidation.

  • A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
  • B. Both Assertion and Reason are correct, but Reason is not the correct explanation for Assertion
  • C. Assertion is correct, but Reason is incorrect
  • D. Both Assertion and Reason are incorrect

Step-by-step solution

Assertion is correct because spectator ions are defined as ions that do not participate in the chemical reaction. Reason is incorrect because the formation of H2O2 from water oxidation is not typically called auto-oxidation; auto-oxidation generally refers to oxidation by atmospheric oxygen. Furthermore, the Reason does not explain the Assertion.
Practise more in this unitView MCQsSign up for full question bank