Definition of Markovnikov Addition

Markovnikov addition is the type of addition reaction in which a protic acid reacts and adds into an asymmetric alkene. The hydrogen is acidic and hence gets attached to the carbon which has a greater number of hydrogen substituents. On the other hand, the halide group gets itself attached to the carbon atom which is having more number of alkyl substituents.

In simple words, it can be stated that hydrogen is added into that carbon which has the greatest number of hydrogens, and halide is added into the carbon which has the least number of hydrogens. The hydration of alkenes and the addition of hydrobromic acid (HBr) to propene are examples of Markovnikov addition.