The acetate ion (CH 3 COO - ) owes its stability to how many equivalent resonance structures?

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The acetate ion (CH<sub>3</sub>COO<sup>-</sup>) owes its stability to how many equivalent resonance structures?

Answer: 2.

Correct answer: B. 2

Explanation: The negative charge is delocalised equally over the two oxygen atoms, giving two equivalent resonance contributors and equal C-O bond lengths.

Geometric (cis-trans) isomers of 1,2-dichloroethene differ only in the relative arrangement of groups across the rigid C=C double bond.

Concept context

General Organic Chemistry covers the rules behind all organic reactions. Covers inductive effect, resonance, hyperconjugation, types of reactions (substitution, addition, elimination), and isomerism including optical and geometric forms.

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The acetate ion (CH<sub>3</sub>COO<sup>-</sup>) owes its stability to how many equivalent resonance structures?

Concept context

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