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Which of the following is the true for Fe3O4 ?

(a)  oxidation no. of each Fe atom in Fe3O4 is +3.

(b)  oxidation no. of each Fe atom in Fe3O4 is +2.

(c)  The no. of atoms having oxidation no. +2 and +3 is 1:2 in Fe3O4 .

(d)  oxidation no. of each Fe atom in Fe3O4 is +8/3

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(c) The no. of atoms having oxidation no. +2 and +3 is 1:2 in Fe3O4.

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