Which of the following is non-stoichiometric

1.	Which of the following is non-stoichiometric
A.	\[F{{e}_{3}}{{O}_{4}}\]
B.	\[F{{e}_{2}}{{O}_{3}}\]
C.	\[FeO\]
D.	All the above
Answer» D. All the above

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Which of the following is non-stoichiometric

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