Asked in PMC Practice Test 21 (2021) 2021Moderate

Which of the following reactions is not caused by benzene?

Correct answer: A. Elimination

  • A. Elimination
  • B. Addition
  • C. Substitution
  • D. Dehydration

Explanation

There is no such evidence of an elimination reaction in Benzene since it completely destroys its stability.Benzene generally also resists addition reactions because that would cause the loss of stability of benzene; however, there are still several reactions in which addition occurs. Example: addition of hydrogen and Nickel/Palladium catalysts to benzene, producing cyclohexane; preparation of benzene hexachloride from benzene by the reaction with Chlorine and sunlight, etc. So this option is also eliminated.

Last updated

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.

Practise Chemistry of Hydrocarbons

1,091 free Chemistry of Hydrocarbons MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Exams that ask Chemistry questions like this

Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Related questions