Select the correct statement.
- AAll canonical forms always contribute equally to the resonance hybrid.
- BIn both ethanamine and ethenamine nitrogen is sp³ hybridised.
- CAll ‘C−O’ bond length in carbonate dianion are equal.
- DCH₂=C=O does exhibit resonance because it is not a conjugated system. - O O
✓ Correct answer: C
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