Question

for depolarization of 1 mole of KMnO4, the moles of H2O2 required is_________

Answer 1

5/2 mole of h2o2 is required

Answer 2

5/2 mole of H2O2 is required.
Here,

2MnO4^- + 5H2O2 —————> 2Mn^(2+)+5H2O+9O2+6e^(-)

Here,
2 moles of KMnO4 is decolourised by 5 moles of H2O2
1 mole of KMnO4 is decolourised by 5/2 moles of H2O2