In which of the following cases, the benzene rings are isolated:
Correct answer: D. Triphenylmethane
- A. Naphthalene
- B. Phenanthrene
- C. Anthracene
- D. Triphenylmethane
Explanation
Isolated Benzenoid Hydrocarbons: In isolated systems, two or more rings are joined to each other directly or through carbon chain. Some of these are biphenyl, diphenylmethane and triphenylmethane.
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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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1,091 free Chemistry of Hydrocarbons MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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