Respuesta :
They rarely occur at molecular levels is incorrect, actually they always occur at molecular levels
Answer: Option (a) is the correct answer.
Explanation:
At molecular level there will be need of energy always for breaking or making of chemical bonds. Therefore, a chemical change will always occur at molecular level.
Thus, we can conclude that out of the given options, the statement a chemical change rarely occurs at the molecular level is not true of chemical changes.
