Which members of alkene are Gases at room temperature
Correct answer: A. Ethene, propene and butene
- A. Ethene, propene and butene
- B. Propene, butene and pentene
- C. Ethene, propene and pentene
- D. Propene, pentene and butene
Explanation
The correct answer is option A: Ethene, propene and butene. The first three members of alkene, ethene, propene, and butene, are gases at room temperature because of their low molecular weights and relatively weak intermolecular forces. Options B, C, and D are incorrect because pentene and above members of alkene are liquids at room temperature due to their higher molecular weights and stronger intermolecular forces.
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About Chemistry of Hydrocarbons
Hydrocarbons are studied through the structures and reactions of alkanes, alkenes, alkynes and aromatic compounds. Coverage includes free radical substitution in alkanes, electrophilic addition to carbon-carbon multiple bonds, benzene substitution, aromatic stability and the difference between addition reactions of alkenes and substitution reactions of benzene.
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