Question

Which of the following happens during a chemical reaction?

Answer 1

C. atoms of reactants rearrange to form new substances

Answer 2

Answer: Option (c) is the correct answer.

Explanation:

A chemical reaction is defined as the reaction that leads to formation of new substances through exchange of electrons.

For example, $2Al + 3CuCl_{2} \rightarrow 2AlCl_{3} + 3Cu$

Here, aluminium on displacing copper from copper chloride leads to the formation of a new compound, that is, aluminium chloride.

Hence, it shows that atoms of reactant molecules rearrange themselves to form new substances.

Thus, we can conclude that during a chemical reaction atoms of reactants rearrange to form new substances .