markovnikov's rule

Question

In the addition of HBr to propene, the major product is:

RankGuru · Accepted Answer

**Markovnikov's Rule** applies to the electrophilic addition of asymmetric reagents (like $HBr$) to asymmetric alkenes.
- Rule: The positive part of the reagent ($H^+$) adds to the carbon atom of the double bond that already has the greater number of hydrogen atoms.
- **Mechanism**: The reaction proceeds through a carbocation intermediate. 
- In **Propene** ($CH_3-CH=CH_2$), $H^+$ adds to $C1$, forming a **Secondary carbocation** ($CH_3-CH^+-CH_3$), which is more stable than a primary one. Subsequent $Br^-$ attack yields **2-Bromopropane**.

Rank Guru

markovnikov's rule

Select the correct option: