STANDARDChemistry-Redox Reactions
STANDARD Chemistry Balancing Redox Reactions MCQ Question
Type: MCQ-numerical-Medium-Class 11
The values of coefficients to balance the following reaction are Cr(OH)₃ + ClO⁻ + OH⁻ → CrO₄²⁻ + Cl⁻ + H₂O
A
Cr(OH)₃ - 2 ClO⁻ - 3 CrO₄²⁻ - 3 Cl⁻ - 3
B
Cr(OH)₃ - 2 ClO⁻ - 4 CrO₄²⁻ - 3 Cl⁻ - 2
C
Cr(OH)₃ - 2 ClO⁻ - 4 CrO₄²⁻ - 4 Cl⁻ - 2
D
Cr(OH)₃ - 2 ClO⁻ - 3 CrO₄²⁻ - 2 Cl⁻ - 3
Correct Answer
Option D
Detailed Explanation
The balanced equation is 2Cr(OH)₃ + 4OH⁻ + 3ClO⁻ → 2CrO₄²⁻ + 3Cl⁻ + 5H₂O. This is achieved by balancing the number of atoms and charges on both sides of the equation.
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