Which one is most ionic ?

Options

A. `P_(2)O_(5)`
B. `MnO_(2)`
C. `Mn_(2)O_(7)`
D. `P_(2)O_(3)`

Answer

D

Explanation

According to Fajan's rule, compounds having large charge on cation are more coval-ent or least efectrovalent So. compounds having low charge on cation will be more electrovalent or ionic.
`overset(+4)(Mn)O_(2) " "overset(+7)(Mn_(2))O_(7) " "overset(+5)(P_(2))O_(5)" "overset(+3)(P_(2)O_(3))`
So `P_(2)O_(3)` will be most ionic