Solved:
Answered by AI, Verified by Human Experts
Classify the half‑reactions as reduction half‑reactions or oxidation half‑reactions. H2(g)⟶2H+(aq)+2e− 12O2(g)+2H+(aq)+2e−⟶H2O(g) Cd(s)+2OH−(aq)⟶Cd(OH)2(s)+2e− 2NiO(OH)(s)+2H2O(l)+2e−⟶2Ni(OH)2(s)+2OH−(aq) Fe(s)⟶Fe2+(aq)+2e− Answer
Classify the half‑reactions as reduction half‑reactions or oxidation half‑reactions. H2(g)⟶2H+(aq)+2e− 12O2(g)+2H+(aq)+2e−⟶H2O(g) Cd(s)+2OH−(aq)⟶Cd(OH)2(s)+2e− 2NiO(OH)(s)+2H2O(l)+2e−⟶2Ni(OH)2(s)+2OH−(aq) Fe(s)⟶Fe2+(aq)+2e− Answer
Answer:The 1st reaction is oxidation half reactionThe 2nd reaction is reduction half reactionThe 3rd reaction is oxidation half reactionThe 4th reaction is reduction half reactionThe 5th reaction is oxidation half reactionExplanation:Oxidation half reactions are those reactions in which the active species undergoes oxidation.Reduction half reactions are those reactions in which the active species undergoes reduction.H₂(g)⟶2H+(aq)+2e⁻ ,It is a oxidation half reaction as H₂ is oxideised to H⁺.1/2O₂(g)+2H+(aq)+2e⁻⟶H₂O(g), It is a reduction half reaction as O₂ is reduced to H₂O.Cd(s)+2OH−(aq)⟶Cd(OH)₂(s)+2e⁻ , It is a oxidation half reaction as Cd is oxidised to Cd(OH)₂.2NiO(OH)(s)+2H₂O(l)+2e⁻⟶2Ni(OH)₂(s)+2OH−, It is a reduction half reaction as NiO(OH) to Ni(OH)₂.Fe(s)⟶Fe²⁺(aq)+2e⁻, It is a oxidation half reaction as Fe is oxidised to Fe²⁺....