A compound contains atoms of three eleme...

A compound contains atoms of three elements A,B and C. If the oxidation number of A is +2 , B is +5 and that of C is - 2 , then the possible formula of the compound is

`A_(3)(BC_(4))_(2)`

`A_(3)(B_(4)C)_(2)`

`ABC_(2)`

`A_(3)(BC_(3))_(2)`

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