Multiple Choice
Given the structure of (ozone) as , which of the following is a correct resonance structure?
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1. A Review of General Chemistry
Resonance Structures
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Which is NOT a valid resonance contributor of acetamide?
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Verified step by step guidance1
Identify the structure of acetamide, which is CH3CONH2. It consists of a carbonyl group (C=O) attached to an amine group (NH2).
Understand that resonance structures are different ways of drawing the same molecule, showing the delocalization of electrons. They must have the same number of electrons and the same arrangement of atoms.
Examine each provided structure to ensure they follow the rules of resonance: atoms must not be moved, only electrons can be shifted, and the overall charge must remain the same.
Check for valid resonance contributors by ensuring that each structure maintains the octet rule for second-row elements (C, N, O) and that formal charges are minimized.
Identify the structure that violates these rules, such as having an incorrect number of bonds for carbon, nitrogen, or oxygen, or an unreasonable distribution of charges, which would make it an invalid resonance contributor.
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