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प्रश्न
Differentiate between homogeneous and heterogeneous mixtures with suitable examples.
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
Fill in the blank
Mixtures can be ________ or _______
How will you separate a mixture of sodium chloride and sand ?
How will you separate a mixture of cooking oil (groundnut oil) and water ?
Give reason:
Why sulphur does dissolve when carbon disulphide is added to a mixture of iron and sulphur but not when it is added to iron sulphide?
Tick (√) the correct alternative from the choice given for the following statement:
A mixture of mustard oil and water forms
Tick (√) the correct alternative from the choice given for the following statement:
Copper is not a part of the alloy
What would you observe when
a saturated solution of potassium chloride prepared at 60°C is allowed to cool to room temperature.
You are given two samples of water labelled as ‘A’ and ‘B’. Sample ‘A’ boils at 100°C and sample ‘B’ boils at 102°C. Which sample of the water will not freeze at 0°C? Comment.
A colloid is a ______ mixture and its components can be separated by the technique known as ______.