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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
Compare the properties of metals and non-metals with respect to
- alleability
- ductility
- electrical conductivity.
Which method can be used to separate a mixture of naphthalene and common salt ?
How will you separate common salt, sand and iron filings from their mixture ?
How will you separate a mixture of kerosene oil and water ? Explain with the help of a labelled diagram.
Why do we need pure substances?
Give an example of mixtures of two compounds
Give reasons for the following:
Naphthalene and camphor cannot be separated by sublimation.
Differentiate between a homogenous and a heterogeneous mixture with one example of each in the (a) solid-solid (b) solid-liquid If (c) liquid-liquid state of the mixture.
How is a mixture of common salt, oil and water separated? You can use a combination of different methods.
A mixture of chloroform and water are taken in a separating funnel is mixed and left undisturbed for some time. The upper layer in the separating funnel will be of ______ and the lower layer will be that of ______.
