Asked in Premeth Test 15 — Organic Chemistry Concepts and Hydrocarbons (17 March 2025) 2025

Which of the following is most reactive of all w.r.t electrophilic addition reaction?

Correct answer: B. Alkenes

  • A. Alkanes
  • B. Alkenes
  • C. Alkynes
  • D. Benzene

Explanation

Alkenes are the most reactive of all options in terms of electrophilic addition reactions because the presence of the double bond allows for the addition of electrophiles across the double bond, forming new compounds. Alkanes, alkynes, and benzene are less reactive in comparison due to the absence of or different structures in their chemical compositions.

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About Alkenes

Alkenes are unsaturated hydrocarbons containing a carbon-carbon double bond with sigma and pi components and restricted rotation. Their reactions include electrophilic addition of hydrogen, halogens, hydrogen halides and water, with Markovnikov orientation, oxidation, combustion and polymerisation, while their preparation commonly involves elimination from alkyl halides or alcohols.

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