JEE Main 2024 Chemistry question
2MnO₄⁻ + bI⁻ + cH₂O → xI₂ + yMnO₂ + zOH⁻. If the above equation is balanced with integer coefficients, the value of z is .
Answer: 8
Solution
The balanced reaction is 2MnO₄⁻ + 6I⁻ + 4H₂O → 3I₂ + 2MnO₂ + 8OH⁻, so z = 8.