Multiple Choice
In which reaction is molecular oxygen (O2) produced?
6. Chemical Quantities & Aqueous Reactions
Redox Reactions
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
In the redox reaction between hydrogen peroxide (H2O2) and iodide ions (I-), forming iodine (I2) and water (H2O), what is the oxidizing agent?
A
Hydrogen peroxide (H2O2)
B
Iodide ions (I-)
C
Water (H2O)
D
Iodine (I2)
Verified step by step guidance1
Identify the species involved in the redox reaction: hydrogen peroxide (H2O2), iodide ions (I-), iodine (I2), and water (H2O).
Understand the concept of an oxidizing agent: it is a substance that gains electrons and is reduced in the process.
Write the half-reactions for the redox process. The reduction half-reaction involves the gain of electrons, and the oxidation half-reaction involves the loss of electrons.
Determine which species is reduced by gaining electrons. In this reaction, hydrogen peroxide (H2O2) is reduced to water (H2O), indicating that it gains electrons.
Conclude that the oxidizing agent is the species that is reduced, which in this case is hydrogen peroxide (H2O2).
1:53mWatch next
Master Oxidation and Reduction Reactions with a bite sized video explanation from Jules
Start learningRelated Videos
Related Practice
Redox Reactions practice set
Problem sets built by lead tutorsExpert video explanations