Show how is carbanion : ${¯ ¯¯¯¯¯¯¯ ¯ C H}_{2} - O ∥ C - C H_{3}$ Stabilised by resonance?

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Solution

Resonance structure of the anion is as follows,
Refer to image.
The delocalization of $π$ electrons stabilizes the carbanion.

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