Q.

In order to oxidize a mixture containing one mole each of FeC2O4, Fe2(C2O4)3, FeSO4, and Fe2(SO4)3 in acidic medium, the total number of moles of KMnO4 required is ________

1 3  
2 2  
3 1  
4 1.5  

Ans.

(2)

3+6+1+05=105=2