Which one of the following oxides is ionic [IIT-JEE 1995]

1.	Which one of the following oxides is ionic [IIT-JEE 1995]
A.	\[MnO\]
B.	\[M{{n}_{2}}{{O}_{7}}\]
C.	\[Cr{{O}_{3}}\]
D.	\[{{P}_{2}}{{O}_{5}}\]
Answer» B. \[M{{n}_{2}}{{O}_{7}}\]

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Which one of the following oxides is ionic [IIT-JEE 1995]

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