In which type of chemical reaction are electrons transferred?
1) organic addition
2) oxidation-reduction
3) double replacement
4) acid-base neutralization



Answer :

The correct answer is 2. 

In oxidation-reduction reactions (or redox reactions), a number of electrons are transferred between two species. During this process, the oxidation number of an atom (or molecule or ion) changes by receiving or losing an electron.

Answer: It is number 2