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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.
What is a mixture ? Give two example of mixtures.
What is meant by (i) homogeneous mixtures, and (ii) heterogeneous mixtures ? Give two examples of homogeneous mixtures and two of heterogenous mixtures.
Which of the following are homogeneous in nature ?
- ice
- wood
- soil
- air
The ‘sea water’ can be classified as a homogeneous mixture as well as a heterogeneous mixture ? Comment.
Name the components present in the following mixture:
Brass
Fill in the blanks
_____or ___________ is a process to separate solids dissolved in liquids.
State the principle involved in separation of solid-solid mixtures by Sublimation
Match the statements in List I with the correct answer in List II.
| List I | List II |
| 1. Purification of water by adding alum | A: Sublimation |
| 2. Seawater leaving behind common salt | B: Sieving |
| 3. Separation of camphor and potassium chloride | C: Filtration |
| 4. Separation of charcoal from a charcoal-water mixture | D: Sedimentation |
| 5. Separation of bran and wheat flour | E: Evaporation |
Give an example of each mixture having the following characteristics. Suggest a suitable method to separate the components of this mixture
Two volatile components with appreciable differences in boiling points.
