Markownikov's rule

This video explains what is markovnikovs rule and its importance in organic Chemistry.

1. Markovnikov’s rule Addition of hydrogen halide to unsymmetrical alkene / alkynes

2. Addition of hydrogen halide in unsaturated compounds proceed through following possible ways:

3. Addition In S ymmetrical Compounds Symmetrical compound Have same no. of hydrogen atoms attached to both doubly/ triply bounded carbon atoms Incoming Hydrogen can bound to any of the unsaturated carbon

4. Addition In Un-s ymmetrical compounds & Markovnikov’s Rule Markovnikov’s Rule states that: “in the addition of an unsymmetrical reagent in unsymmetrical alkene, the negative part of the adding reagent goes to that carbon, constituting the double bond, which has least no. of hydrogen atom” Halide will attack on less electropositive carbon

5. or “In the addition of hydrogen halide to the carbon-carbon double bond of an alkene the hydrogen atom attaches itself to the carbon atom of the double bond that already holds greater no. of hydrogens” Hydrogen will attack on more electropositive carbon

6. Addition in Alkenes  

7. Addition in Alkynes gem-dihaloalkane Alkyne haloalkene