JEE Main 2026 Chemistry question
In order to oxidise a mixture of 1 mole each of FeC₂O₄, Fe₂(C₂O₄)₃, FeSO₄ and Fe₂(SO₄)₃ in acidic medium, the number of moles of KMnO₄ required is
Answer: (B)
Solution
Electrons lost: FeC₂O₄ gives 1(Fe²⁺→Fe³⁺)+2(C₂O₄²⁻→2CO₂)=3; Fe₂(C₂O₄)₃ gives 0+3×2=6; FeSO₄ gives 1;
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account