Podcast
Questions and Answers
Which species acts as the reducing agent in the reaction: Cr2O7^2- + 14H^+ + 6Fe^2+ → 2Cr^3+ + 6Fe^3+ + 7H2O?
Which species acts as the reducing agent in the reaction: Cr2O7^2- + 14H^+ + 6Fe^2+ → 2Cr^3+ + 6Fe^3+ + 7H2O?
- H^+
- Cr^3+
- Cr2O7^2-
- Fe^2+ (correct)
In the reaction MnO4^- + 8H^+ + 5e^- → Mn^2+ + 4H2O, what is the change in oxidation state of Mn?
In the reaction MnO4^- + 8H^+ + 5e^- → Mn^2+ + 4H2O, what is the change in oxidation state of Mn?
- +7 to +2 (correct)
- +4 to +2
- +2 to +4
- +2 to +7
Which reaction is classified as a redox reaction?
Which reaction is classified as a redox reaction?
- 2Na + Cl2 → 2NaCl (correct)
- NaCl + AgNO3 → AgCl + NaNO3
- NH4Cl → NH3 + HCl
- CaCO3 → CaO + CO2
Which element gets oxidized in the reaction Zn + CuSO4 → ZnSO4 + Cu?
Which element gets oxidized in the reaction Zn + CuSO4 → ZnSO4 + Cu?
What is the oxidation number of S in H2SO4?
What is the oxidation number of S in H2SO4?
Which of the following reactions does not involve redox processes?
Which of the following reactions does not involve redox processes?
Identify the oxidizing agent in the reaction: 2KMnO4 + 16HCl → 2KCl + 2MnCl2 + 5Cl2 + 8H2O.
Identify the oxidizing agent in the reaction: 2KMnO4 + 16HCl → 2KCl + 2MnCl2 + 5Cl2 + 8H2O.
Which reaction represents a disproportionation process?
Which reaction represents a disproportionation process?
What is the change in oxidation number of Fe in the reaction: 2FeCl3 + H2S → 2FeCl2 + 2HCl + S?
What is the change in oxidation number of Fe in the reaction: 2FeCl3 + H2S → 2FeCl2 + 2HCl + S?
Flashcards
Oxidizing agent
Oxidizing agent
A substance that loses electrons and its oxidation number increases.
Reducing agent
Reducing agent
A substance that gains electrons and its oxidation number decreases.
Redox reaction
Redox reaction
A reaction involving the transfer of electrons, resulting in changes in oxidation numbers.
Reduction
Reduction
Signup and view all the flashcards
Oxidation
Oxidation
Signup and view all the flashcards
Oxidation number
Oxidation number
Signup and view all the flashcards
Disproportionation reaction
Disproportionation reaction
Signup and view all the flashcards
Oxidized species
Oxidized species
Signup and view all the flashcards
Reduced species
Reduced species
Signup and view all the flashcards
Oxidation-reduction reaction
Oxidation-reduction reaction
Signup and view all the flashcards
Study Notes
Redox Reactions
- Reducing Agent in a Reaction: Fe2+ in the reaction Cr2O72- + 14H+ + 6Fe2+ → 2Cr3+ + 6Fe3+ + 7H2O
- Oxidation State Change in Mn: In MnO4- + 8H+ + 5e- → Mn2+ + 4H2O, the oxidation state of Mn changes from +7 to +2.
- Redox Reaction Identification: A redox reaction involves a change in oxidation states of elements (e.g., 2Na + Cl2 → 2NaCl).
- Oxidation Number of S in H2SO4: +6
- Non-Redox Reaction: CaCO3 → CaO + CO2 is not a redox reaction.
- Oxidizing Agent: KMnO4 in the reaction 2KMnO4 + 16HCI → 2KCl + 2MnCl2 + 5CI2 + 8H2O
- Oxidation Number of Cl in HClO4: +7
- Disproportionation Reaction: Cl2 + 2NaOH → NaCl + NaCIO + H2O is a disproportionation reaction.
- Oxidation Number Change in Fe: In 2FeCl3 + H2S → 2FeCl2 + 2HCI + S, the oxidation number of Fe changes from +3 to +2.
- Reducing Agent: H2S is a reducing agent.
- Oxidation Number of S in Na2S2O3: +2
- Reduced Element in CuO + H2 → Cu + H2O: Copper (Cu)
- Oxidation Number of Cr in K2Cr2O7: +6
- Characteristics of Redox Reactions: Redox reactions involve simultaneous oxidation and reduction, a change in oxidation number, and electron transfer; however, redox reactions are not always exothermic.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
