Ch. 1 - A Review of General ChemistrySee all chapters
All Chapters
Ch. 1 - A Review of General Chemistry
Ch. 2 - Molecular Representations
Ch. 3 - Acids and Bases
Ch. 4 - Alkanes and Cycloalkanes
Ch. 5 - Chirality
Ch. 6 - Thermodynamics and Kinetics
Ch. 7 - Substitution Reactions
Ch. 8 - Elimination Reactions
Ch. 9 - Alkenes and Alkynes
Ch. 10 - Addition Reactions
Ch. 11 - Radical Reactions
Ch. 12 - Alcohols, Ethers, Epoxides and Thiols
Ch. 13 - Alcohols and Carbonyl Compounds
Ch. 14 - Synthetic Techniques
Ch. 15 - Analytical Techniques: IR, NMR, Mass Spect
Ch. 16 - Conjugated Systems
Ch. 17 - Aromaticity
Ch. 18 - Reactions of Aromatics: EAS and Beyond
Ch. 19 - Aldehydes and Ketones: Nucleophilic Addition
Ch. 20 - Carboxylic Acid Derivatives: NAS
Ch. 21 - Enolate Chemistry: Reactions at the Alpha-Carbon
Ch. 22 - Condensation Chemistry
Ch. 23 - Amines
Ch. 24 - Carbohydrates
Ch. 25 - Phenols
Ch. 26 - Amino Acids, Peptides, and Proteins

Solution: For the three Lewis structures shown below, two OR three of the structures shown can be considered resonance forms of each other. One of the structures may or may not be a resonance contributor of the other two. For each structure shown, indicate whether it is the best resonance contributor (of the resonance forms present), the worst resonance contributor (of the resonance forms present), intermediate quality resonance contributor (only if all 3 are resonance structures), or not a resonance contributor (compared to the other two). Note: if only two of the structures are resonance forms, there will not be an “intermediate quality” contributor; only a “best” and a “worst”. Indicate your choice by placing an “X” in the appropriate box.

Problem

For the three Lewis structures shown below, two OR three of the structures shown can be considered resonance forms of each other. One of the structures may or may not be a resonance contributor of the other two. For each structure shown, indicate whether it is the best resonance contributor (of the resonance forms present), the worst resonance contributor (of the resonance forms present), intermediate quality resonance contributor (only if all 3 are resonance structures), or not a resonance contributor (compared to the other two). Note: if only two of the structures are resonance forms, there will not be an “intermediate quality” contributor; only a “best” and a “worst”. Indicate your choice by placing an “X” in the appropriate box.