Which of the following is true about arenes?
Correct answer: A. Low melting and low boiling points
- A. Low melting and low boiling points
- B. High melting and high boiling points
- C. Low melting and high boiling points
- D. High solubility in polar solvents
Explanation
OPTION A: Arenes are compounds that contain benzene ring(s). Since the only possible intermolecular force of attraction, in this case, are Vander Waal's very weak forces, little internal energy is required to break these forces leading to low melting and boiling points.OPTION B: Arenes have low melting and boiling points, not high melting and boiling points.OPTION C: In this option, one thing is correct and the other is incorrect. Arenes have low melting points but not high boiling points.OPTION D: This option is also incorrect and related to arenes.
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About Benzene and Aromatic Compounds
Benzene has a planar ring of delocalised π electrons, giving aromatic stability and equal carbon-carbon bond lengths. The topic covers resonance, electrophilic substitution reactions such as nitration, halogenation, sulphonation and Friedel-Crafts reactions, along with substituent effects and the distinction between substitution in benzene and addition in ordinary alkenes.
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