MP Board · Class 11 · Chemistry · HydrocarbonsAddition of HBr to propene in the presence of peroxide follows which rule?
Step-by-Step Solution
In the presence of organic peroxides (like benzoyl peroxide), the addition of unsymmetrical reagents like HBr to unsymmetrical alkenes like propene takes place via a free-radical mechanism, which yields anti-Markovnikov's product (1-bromopropane). This is also known as the peroxide effect or Kharasch effect.
Detailed Options Breakdown
Option : Markovnikov's rule
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Hydrocarbons.
Option 1: Anti-Markovnikov's rule (Peroxide effect) (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: Saytzeff's rule
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Hydrocarbons.
Option 3: Hoffmann's rule
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Hydrocarbons.
💡 Study Guide: This question tests core syllabus concepts from Hydrocarbons. For formulas, key summaries, and mock exam reference guides, read the full Hydrocarbons Revision Notes.