Question
Class 11ChemistryRedox Reactions

Using electron-transfer concept, identify the oxidant and reductant in the following redox reactions:

(a) Zn(s) + 2H+(aq) ⟶ Zn2+(aq) + H2(g)

(b) 2[Fe(CN)6]4−(aq) + H2O2(aq) + 2H+(aq) ⟶ 2[Fe(CN)6]3−(aq) + 2H2O(l)

(c) 2[Fe(CN)6]3−(aq) + 2OH−(aq) + H2O2(aq) ⟶ 2[Fe(CN)6]4−(aq) + O2(g) + 2H2O(l)

(d) BrO3−(aq) + F2(g) + 2OH−(aq) ⟶ BrO4−(aq) + 2F−(aq) + H2O(l)

(e) 2NaClO3(aq) + I2(aq) ⟶ 2NaIO3(aq) + Cl2(g)

Verified Answer

Oxidants:

(a) H+

(b) H2O2

(c) [Fe(CN)6]3−

(d) F2

(e) NaClO3

Reductants:

(a) Zn

(b) [Fe(CN)6]4−

(c) H2O2

(d) BrO3−

(e) I2