Question

According to Dalton's atomic theory, a chemical reaction involves of atoms.

• A. rearrangement
• B. destruction
• C. creation

Answer 1

The correct option is A rearrangement

Dalton's atomic theory states that atoms can neither be created nor be destroyed. The existing atoms get rearranged during a chemical reaction.

Consider the following reaction:
$\mathrm{Zn}\left(s\right)+2\mathrm{HCl}\left(\mathrm{aq}\right)\to {\mathrm{ZnCl}}_2\left(\mathrm{aq}\right)+H_2\left(g\right)$
Here, the same number of atoms of zinc, hydrogen and chlorine are present on the reactant side and the product side.
Hence, no creation or destruction of atoms occur; they only get rearranged to form new compounds.