Correct Answer:
Option D - In chemistry, the substance which obtained by mixing two or more elements / compounds / substances in any proportion is called a mixture. The mixture can be separated into its initial ingredients by simple mechanical methods. The constituents present in the mixture always retain their properties. For example, a mixture of salt and sand Mixtures do not have fixed structure.
D. In chemistry, the substance which obtained by mixing two or more elements / compounds / substances in any proportion is called a mixture. The mixture can be separated into its initial ingredients by simple mechanical methods. The constituents present in the mixture always retain their properties. For example, a mixture of salt and sand Mixtures do not have fixed structure.