Which cannot take place during a chemical reaction?

Question 27 options:

formation of new atoms

bonds breaking between atoms

formation of new molecules

bonds forming between atoms

During a chemical reaction formation of new atoms is not possible.

Explanation:

A chemical process includes the reactants going through series of breaking and forming of new bonds within atoms to form a new molecules as a product. In any chemical process no any atom is formed and neither of them is destroyed. The only change occurred is the change in the bonding of atoms according to the external factors like reagents, temperature, pressure, catalyst etc.