Which of the following statements regarding the chemical classification of matter is strictly true? — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question

💡 Solution & Explanation

Statement A is false because compounds possess entirely different properties from their constituent elements (e.g., $H_2$ and $O_2$ form $H_2O$). Statement B is false because heterogeneous mixtures have non-uniform compositions and multiple phases. Statement C is false because pure substances cannot be separated by physical methods; compounds require chemical methods to separate. Statement D correctly defines a compound.