\( \mathrm{A}, \mathrm{B} \) and \( \mathrm{C} \) are three elements forming part of a compound ....

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\( \mathrm{A}, \mathrm{B} \) and \( \mathrm{C} \) are three elements forming part of a
\( \mathrm{P} \)
compound in oxidation states of \( +2,+5 \) and -2 respectively. What could be the compound?
(1) \( \mathrm{A}_{2}(\mathrm{BC})_{2} \)
(2) \( \mathrm{A}_{2}\left(\mathrm{BC}_{4}\right)_{3} \)
(3) \( \mathrm{A}_{3}\left(\mathrm{BC}_{4}\right)_{2} \)
(4) \( \mathrm{ABC} \)


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