53 public questions tagged with this topic.
2MnO 4 - + 5C 2 O 4 2- + 16H + → 2Mn 2+ + 10CO 2 + 8H 2 O
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: General Properties of d-Block - Electronic Configuration and Trends
Cr 2 O 7 2- + 6Fe 2+ + 14H + → 2Cr 3+ + 6Fe 3+ + 7H 2 O
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Actinoids and Comparison of Lanthanoids and Actinoids
Cr 2 O 7 2- oxidizes I - to I 2 and gets reduced to Cr 3+ (green).
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Actinoids and Comparison of Lanthanoids and Actinoids
NO₃⁻ + 10H⁺ + 8e⁻ → NH₄⁺ + 3H₂O . 8 electrons per mole.
Ref: NCERT Class 12 Chemistry > Chapter 2: Electrochemistry > Topic: Electrochemical Cells - Galvanic Cells and Electrode Potential
Fe³⁺ + 3e⁻ → Fe . 3 electrons are required per mole.
Ref: NCERT Class 12 Chemistry > Chapter 2: Electrochemistry > Topic: Corrosion and Applications of Electrochemistry
Fe³⁺ + 3e⁻ → Fe . 3 electrons are required per mole.
Ref: NCERT Class 12 Chemistry > Chapter 2: Electrochemistry > Topic: Corrosion and Applications of Electrochemistry
ClO₄⁻ + 8H⁺ + 8e⁻ → Cl⁻ + 4H₂O . 8 electrons per mole.
Ref: NCERT Class 12 Chemistry > Chapter 2: Electrochemistry > Topic: Conductance - Conductivity Molar Conductivity and Kohlrausch Law
The oxidizing agent is reduced. Cu (+2 in CuSO₄) becomes 0 in Cu, oxidizing Cr (0 to +3).
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Types of Redox Reactions - Combination Decomposition Displacement
Br (-1 in KBr) to 0 in Br₂: +1. Mn (+4 in MnO₂) to +2: -2. Br increases, Mn decreases; Br has the largest increase.
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Types of Redox Reactions - Combination Decomposition Displacement
Reduction involves electron gain. Cu (+2 in CuCl₂) gains electrons to become Cu (0).
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Types of Redox Reactions - Combination Decomposition Displacement
In 2HgO → 2Hg + O₂, Hg (+2 to 0) is reduced, and O (-2 to 0) is oxidized.
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Types of Redox Reactions - Combination Decomposition Displacement
The reducing agent is oxidized. Na (0) becomes +1 in NaBr, reducing Br (0 to -1).
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Redox Titrations and Equivalent Weight and Normality
