(a) Oxidised substance → C6H6O2
Reduced substance → AgBrO
xidising agent → AgBr
Reducing agent → C6H6O2
(b)Oxidised substance → HCHO
Reduced [Ag(NH3)2]+ substance →
Oxidising agent → [Ag(NH3)2]+
Reducing agent → HCHO
(c) Oxidised substance → HCHO
Reduced substance → Cu2+
Oxidising agent → Cu2+
Reducing agent → HCHO
(d) Oxidised substance → N2H4
Reduced substance → H2O2
Oxidising agent → H2O2
Reducing agent → N2H4
(e) Oxidised substance → Pb
Reduced substance → PbO2
Oxidising agent → PbO2
Reducing agent → Pb