Sir is question ko Google kiya tha, waha log kuch log bolre the ki fe+2 se +3 ho jata h, Mn +7 se +2, so FeSO4 ka equiv. Wt. M/1 hoga and KMnO4 ka M/5 hoga

But ye nahi samjha ki Fe +3 aur Mn +2 kaise hora h bcoz i dont know how the rxn goes

Plz write the full rxn, what are the products formed in this rxn?? Then only I may able to get this question