Organic compounds that are essentially nonpolar and exhibit weak intermolecular forces have________________?
Correct answer: A. Low melting points
- A. Low melting points
- B. Low vapour pressure
- C. High boiling points
- D. High electrical conductivity
Explanation
Nonpolar organic compounds have weak intermolecular forces, so less energy is needed to separate their molecules during melting and they generally have low melting points. Weak attractions also tend to give higher vapour pressure and lower boiling points, not high boiling points or electrical conductivity. The likely mistake is high boiling points, which would require stronger intermolecular attractions.
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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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