In a resonance structure of a molecule:
Correct answer: D. All are true
- A. Pairing scheme should be same
- B. Arrangement of atoms should be same
- C. Energy should be same
- D. All are true
Explanation
The following are the characteristics of a resonance structure. The same number of paired and unpaired electrons i.e. the pairing scheme should be similar. Resonating structure energy should be nearly similar. All atoms should be in the same plane and all bond lengths must be equal i.e. arrangement of atoms should be the same. Since all three statements A,B, C are correct, D is the answer.
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About Classification of Organic Compounds
Organic compounds are classified by carbon skeleton into open-chain, branched-chain and cyclic compounds, including homocyclic and heterocyclic types. The classification also uses functional groups to distinguish hydrocarbons, halo compounds, alcohols, aldehydes, ketones, carboxylic acids and their derivatives, which is different from naming compounds by IUPAC rules.
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