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Solutions — Chemistry STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceChemistrySolutions3 Marks
Question
Define the term solution. How many types of solutions are formed? Write briefly about each type with an example.
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Answer

A homogeneous mixture of two or more substances is called solution.
Homogeneous mixture means that all parts of the mixture have the same composition and properties. Depending on the physical state of the solvent, there are mainly three types of solution :
(1) Solid solution
(2) Liquid solution
(3) Gaseous solution
These can be reclassified depending on the physical state of the solute. Therefore, there are actually 9 types of solution which are as follows :
Type of SolutionSoluteSolventCommon Examples
Gaseous SolutionsGasGasMixture of oxygen and nitrogen gases
LiquidGasChloroform mixed with nitrogen gas
SolidGasCamphor in nitrogen gas
Liquid SolutionsGasLiquidOxygen dissolved in water
LiquidLiquid in waterEthanol dissolved
SolidLiquidGlucose dissolved in water
Solid SolutionsGasSolidSolution of hydrogen in palladium
LiquidSolidAmalgam of mercury with sodium
SolidSolidCopper dissolved in gold

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