Mixture and Alligation: Replacing/Mixing Solutions A mixture is a combination of two or more substances that are not chemically combined. The two substan...
A mixture is a combination of two or more substances that are not chemically combined. The two substances can be separated by physical methods like filtration or distillation. The mixture may exhibit different properties compared to the original individual substances.
An alligation is a specific type of mixture in which the components are chemically combined to form a new substance with distinct properties. This new substance may have a higher melting point, solubility, or conductivity than the original components.
Replacing Solutions
In a mixture, the components can be replaced by each other to form a new solution with the same overall composition. This can be achieved by mixing equal volumes of two solutions or by diluting one solution with another.
For example, if you have a solution of 100 mL of water and 100 mL of salt water, you can replace the water with salt water to get a new solution with the same total volume.
Alligation
In an alligation, the components retain their individual properties and are not chemically transformed into a new substance. This is evident in the formation of alloys, which are mixtures of two or more metals that have different melting points and colors.
For instance, mixing copper and silver powder creates an alloy that has properties of both copper and silver. The alloy has a different color and a higher melting point compared to the individual metals.
Key Differences
| Feature | Mixture | Alligation |
|---|---|---|
| Chemical bonding | Non-chemical | Chemical |
| Components | Components are not chemically combined | Components retain their individual properties |
| Overall composition | Same as original mixtures | Different from original components |
| Melting/boiling point | Can be different | Same as original components |
| Solubility | Can be different | Usually higher |
Practice
Explain the difference between a mixture and an alligation.
Provide examples of each type of mixture and alligation.
Differentiate between the characteristics of mixtures and alligations in terms of chemical bonding, components, and overall composition.
Give real-world scenarios where mixtures and alligations are used