Homework Answers
Solution :-
Following image shows the hydrogens circled that are most acidic hydrogens in the molecule.
The middle -CH2 hydrogens are most acidic because they are flanked with two carbonyl groups. Carbonyl groups are electron withdrawing groups therefore it increases the aciditiy of the middle CH2 hydrogens. The equilibrium favors the forward reaction.
The carbanion formed after the removal of the hydrogen by base is more stable because it can have two resonsnace structures with two carbonyl groups. This makes the middle CH2 hydrogens more acidic.
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