Homogeneous mixturesHeterogeneous mixtures1. They have uniform compositions1. They have non−uniform compositions2. The components of homogeneous mixtures are not physically distinct2. They contain physically distinct parts3. They have no visible boundaries of separation between the constituents3.They have visible boundaries of separation between the constituents4. Examples:Alloys, solution of salts in water, etc.4. Examples:Mixtures of sand and common salt, mixtures of sand and water, etc