Question

Consider the following balanced redox reaction:2CrO₂⁻(aq) + 2H₂O(l) + 6ClO⁻(aq) →

Answer 1

The balanced  redox reaction are given below

2CrO₂⁻(aq) + 2H₂O(l) + 6ClO⁻(aq) →2CrO₄²⁻(aq) + 3Cl₂(g) + 4OH⁻(aq)

The Cl species is oxidizing agent .

There are following steps involve in balanced redox reaction in basic medium .

• Divide the reaction into two half reactions .

• Balance the elements other than oxygen and hydrogen .

• Balance the oxygen atom by adding $H_{2} O$  .

• Balance the hydrogen atom by adding $H^{+}$ .

• Balance the charge  by adding $e^{-}$ .
• Add $OH^{-}$ on both side
• Neutralize by combing  $OH^{-}$ and  $H^{+}$ .

• Add the half reaction and simply .

The species which reduces the other species in the redox reaction is called oxidizing agent . Similarly , the species which oxidize the other species in the redox reaction  is called reducing agent .

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