$H_{3} P O_{3}$ can be represented by structures 1 and 2 shown above. Can these two structures be taken as the canonical forms of the resonance hybrid representing $H_{3} P O_{3}$ ? If not, give reasons for the same.

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Solution

In the canonical forms, the position of atoms remains same but the position of electrons change. In the given canonical forms, the position of atoms changes. Hence, they cannot be taken as canonical forms.

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H3PO3 can be represented by structures 1 and 2 shown above. Can these two structures be taken as the canonical forms of the resonance hybrid representing H3PO3 ? If not, give reasons for the same.

In the canonical forms, the position of atoms remains same but the position of electrons change. In the given canonical forms, the position of atoms changes. Hence, they cannot be taken as canonical forms.

$H_{3} P O_{3}$ can be represented by structures 1 and 2 shown above. Can these two structures be taken as the canonical forms of the resonance hybrid representing $H_{3} P O_{3}$ ? If not, give reasons for the same.