JEE Main Chemistry question

ChemistryRedox ReactionsJEE Main

Find the value of 'b' for the following half equation: Mn^{2+}+xH_2O \to MnO_2+aH^++be^-

Answer: 2

Solution

Mn: is a loss of 2 electrons, which appear as a product in this oxidation half-equation, so .

Question ID VK-137174