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H(3) PO(3) can be represented by the str...

`H_(3) PO_(3)` can be represented by the structures 1 and 2 shown below . Can these two structrue be
taken as the canonical forms of the resonance hybrid of ` H_(3) PO_(3)`? If not ,given reason for the same

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No,these cannot be taken as cononical forms because the positions of atoms have been changed .
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H_(3)PO_(3) can be represented by structure (a) and (b) shown below. Can these two structures be taken as the canonical forms of the resonance hybrid representing H_(3)PO_(3) ?If not, give reasons for the same.

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H_(3)PO_(3) can be represented by structures I and II shown below. Can these two structures be taken as the canonical forms of the resonance hybride representing H_(3)PO_(3) ? If not, give resonance hybrid representing H_(3)PO_(3) ? If not, give reasons for the same.

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