In the redox reaction a CrCl3 + b H2O2 + c NaOH → 2 Na2CrO4 + x NaCl + y H2O Find the value of a, b, c in the given equation :

Engineering

Chemistry

Balancing of Redox Reaction

Question

In the redox reaction
a CrCl₃ + b H₂O₂ + c NaOH → 2 Na₂CrO₄ + x NaCl + y H₂O
Find the value of a, b, c in the given equation :

a = 2, b = 2, c = 8

a = 2, b = 3, c = 10

a = 2, b = 3, c = 4

a = 1, b = 2, c = 8

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(balanced skelton) 2CrCl₃ + 3H₂O₂ → 2Na₂CrO₄ + 6H₂O
                               + 6NaCl (Chloride balance)
                   + 10NaOH (Sodium balance)
                                   + 2H₂O (Oxygen balance)
   ______________________________________________________________________
   2CrCl₃ + 3H₂O₂ + 10NaOH → 2Na₂CrO₄ + 6NaCl + 8H₂O
   ⇒        a = 2    b = 3   and    c = 10

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