3 public questions tagged with this topic.
In BaCl₂ + H₂SO₄ → BaSO₄ + 2HCl, no element changes oxidation state; it’s a double displacement reaction.
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Types of Redox Reactions - Combination Decomposition Displacement
In KOH + HNO₃ → KNO₃ + H₂O, all elements retain their oxidation states (K: +1, O: -2, H: +1, N: +5).
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Types of Redox Reactions - Combination Decomposition Displacement
In FeCl₃ + 3NaOH → Fe(OH)3 + 3NaCl, no element changes oxidation state (Fe: +3, Na: +1, Cl: -1, O: -2, H: +1).
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Applications of Redox Reactions and Disproportionation
