Correct option is D
A homogeneous mixture is a mixture that has a uniform composition throughout, meaning that the different components cannot be visually distinguished from each other. On the other hand, a heterogeneous mixture has visibly different components or phases.
A mixture of copper sulphate in water: Homogeneous, as the copper sulphate dissolves completely in water, creating a uniform solution.
A mixture of sugar in water: Homogeneous, as sugar dissolves completely in water, forming a uniform solution.
A mixture of salt in water: Homogeneous, as salt dissolves completely in water, forming a uniform solution.
A mixture of iron nails in water: Heterogeneous, because iron nails do not dissolve in water and remain as solid particles, making the mixture visibly non-uniform.
Information Booster:
Homogeneous mixtures: The components are evenly distributed, and the mixture appears uniform throughout.
Heterogeneous mixtures: The components are not evenly distributed, and the individual parts can be easily distinguished.
Homogeneous mixture examples: Solutions like saltwater, sugar in tea, air, and alloys.
Heterogeneous mixture examples: Sand and water, salad, granite, and iron nails in water.
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