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

Question

TextResonance Structures of Molecules

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Explain the structure of CO3²⁻ ion in terms of resonance.

Explain the structure of CO2 molecule.

Explain the important aspects of resonance with reference to the CO3²⁻ ion.

TextResonance Structures of Molecules

Write the resonance structures for SO3, NO2 and NO3⁻.

Write resonance structures of CH₃COO⁻ and show the movement of electrons by curved arrows.

Write resonance structures of CH₂=CH–CHO. Indicate relative stability of the contributing structures.