Question

Balance the following redox equation by electro-ion method: Cl2 + IO3 - -----> Cl- + IO4 - (In Basic Medium)

Answer 1

Answer:

Cl₂+ IO₃⁻ + 2OH⁻ -------->2Cl⁻ +IO₄⁻ +  H₂O in basic medium

Explanation:

Cl₂+2e⁻-------->2Cl⁻ (equation i )

IO₃⁻ + H₂O -------->IO₄⁻+ 2e⁻ (Equation number ii)

Adding equation i and ii

Cl₂+ IO₃⁻ + H₂O -------->2Cl⁻ +IO₄⁻ + 2H⁺  in acidic medium

for basic medium add same amount of OH⁻ as H⁺

because H⁺ + OH⁻ ----> H₂O

Cl₂+ IO₃⁻ + H₂O+2OH⁻ -------->2Cl⁻ +IO₄⁻ + 2H⁺ + 2OH⁻

Cl₂+ IO₃⁻ + H₂O+2OH⁻ -------->2Cl⁻ +IO₄⁻ + 2H₂O

Cl₂+ IO₃⁻ + 2OH⁻ -------->2Cl⁻ +IO₄⁻ +  H₂O