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Consider the following pairs of compounds
Of these pairs
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Of these pairs
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The correct answer is:
X is a resonance pair, while Y is a pair of tautomers
In 'X' pair of compounds, delocalization of electrons occurs without the change in the relative position of bonded atoms (or nuclei). Hence, X is a resonance pair.
In Y pair of compounds, shifting of proton occurs from N atom to O atom. Hence, 'Y' is a pair of tautomers.
In Y pair of compounds, shifting of proton occurs from N atom to O atom. Hence, 'Y' is a pair of tautomers.
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