Chemistry
Grade-7
Easy
Question
What is the name of the process which is used to separate the particles of colloids?
- Filtration
- Evaporation
- Melting
- Centrifugation
Hint:
Centrifugation
The correct answer is: Centrifugation
Centrifugation: When particles are spun fast, the dense particles settle at the bottom while the lighter ones remain at the top. It is used to separate the particles of colloids.
Related Questions to study
Chemistry
The mass percentage of the solution is given by
The mass percentage of the solution is given by
ChemistryGrade-7
Chemistry
Which of the following mixture is not an example of a colloidal solution?
Which of the following mixture is not an example of a colloidal solution?
ChemistryGrade-7
Chemistry
If a solution contains 55 g of common salt in 500 g of water, the mass percentage will be
If a solution contains 55 g of common salt in 500 g of water, the mass percentage will be
ChemistryGrade-7
Chemistry
Match the statements of Column A with those of Column B.
Match the statements of Column A with those of Column B.
ChemistryGrade-7
Chemistry
Complete the following analogy:
Suspension: mud in water: solutions:
Complete the following analogy:
Suspension: mud in water: solutions:
ChemistryGrade-7
Chemistry
Identify the alloy from the following.
Identify the alloy from the following.
ChemistryGrade-7
Chemistry
What kind of mixture can be separated by the method of filtration?
What kind of mixture can be separated by the method of filtration?
ChemistryGrade-7
Chemistry
What kind of solution is sol?
What kind of solution is sol?
ChemistryGrade-7
Chemistry
The mixture in which the dispersed phase is solid and the dispersion medium is gas is known as
The mixture in which the dispersed phase is solid and the dispersion medium is gas is known as
ChemistryGrade-7
Chemistry
The amount of the solute present in the saturated solution at a given temperature is called as
The amount of the solute present in the saturated solution at a given temperature is called as
ChemistryGrade-7
Chemistry
In which of the following does the scattering of light takes place?
In which of the following does the scattering of light takes place?
ChemistryGrade-7
Chemistry
What is an emulsion?
What is an emulsion?
ChemistryGrade-7
Chemistry
The amount mass of solute present in a given mass of the solution is known as
The amount mass of solute present in a given mass of the solution is known as
ChemistryGrade-7
Chemistry
The colloidal system, the substance that is dispersed is known as
The colloidal system, the substance that is dispersed is known as
ChemistryGrade-7
Chemistry
In the picture below, a beam of light is passing through the solution present in beaker A and beaker B. What types of solutions are present in beaker A and beaker B, respectively?
In the picture below, a beam of light is passing through the solution present in beaker A and beaker B. What types of solutions are present in beaker A and beaker B, respectively?
ChemistryGrade-7
