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प्रश्न
Differentiate between homogeneous and heterogeneous mixtures with suitable examples.
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उत्तर १
| Homogeneous mixture |
Heterogeneous mixture |
| These are called as solutions |
These are called as suspensions/colloids |
| Substances are Uniformly distributed |
These substances are Unevenly distributed |
| These are not visible to the naked eye, but visible through the microscope |
These are easily visible to the naked eye and also through a microscope |
| The particles appear smaller in size | The particles are either smaller or larger in size |
| These are pure substances |
These are not pure substances |
| They represent the same physical properties |
They do not possess the same physical properties |
| Examples include milk, gasoline, sugar solution, corn oil, fog, etc | Examples are a mixture of mud & water, beach sand, vinegar, air cloud, etc |
उत्तर २
The main characteristics of the mixture (Iron + Sulphur) are :
Homogeneous mixtures :
- There constituents are uniformly mixed.
- The properties and composition are the same throughout the mixture.
Examples:
- alcohol and water
- salt and water
- sugar and water
Heterogeneous mixtures :
- Their constituents are not uniformly mixed.
- The properties and composition vary throughout the mixture.
Examples:
- oil and water
- sand and water
- chalk and water
संबंधित प्रश्न
Select the correct alternative from the choices given for the following statement:
Example of a homogeneous mixture is
Classify the following materials as homogeneous mixtures and heterogeneous mixtures :
Soda-water, Wood, Air, Soil, Vinegar, Alcohol and water mixture, Petrol and water mixture, Chalk and water mixture, Sugar and water mixture, Copper sulphate solution.
Which of the following is not a mixture ?
Give reason:
Why do sugar and water retain their individual properties in a sugar solution?
Name the components present in the following mixture:
Crude petroleum oil
Tick (√) the correct alternative from the choice given for the following statement:
A mixture of mustard oil and water forms
State whether the following statement is true or false. If false write – the correct statement.
Mixture has no definite set of properties.
Give reasons for the following:
Naphthalene and camphor cannot be separated by sublimation.
A colloid is a ______ mixture and its components can be separated by the technique known as ______.
Mixtures are impure substances.
