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Separation Of Substances

Description: seperation Methods of SeparationSievingSeparation of SubstancesEvaporationSaturated SolutionFiltration
Number of Questions: 15
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Tags: seperation Methods of Separation Sieving Separation of Substances Evaporation Saturated Solution Filtration
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Which of the following is the odd one out?

  1. Zaru

  2. Spider

  3. Tamis

  4. Colander

  5. Shauls


Correct Option: E
Explanation:

They are a device used in winnowing.

Which of the following removes liquid droplets from gas streams?

  1. Drying

  2. Demister

  3. Deinking

  4. Stripping

  5. Elutriation


Correct Option: B
Explanation:

It removes liquid droplets from gas streams.

What is the process of converting a solid substance directly to the gas phase called?

  1. Sublimation

  2. Evaporation

  3. Condensation

  4. Distilation

  5. Crystallisation


Correct Option: A
Explanation:

It is the transition of a substance directly from the solid to the gas phase.

Which of the following is not an application of centrifugation?

  1. For separating textiles.

  2. Removing fat from milk to produce skimmed milk.

  3. Separating different grades of plastic.

  4. Separation of urine components and blood components in forensic lab.

  5. Separation of water particles from clothes while spin drying in washing machine.


Correct Option: C
Explanation:

The method used is gravity separation.

What is the process to separate two miscible liquids called?

  1. Centrifugation

  2. Filtration

  3. Flocculation

  4. Flotation

  5. Distillation


Correct Option: E
Explanation:

This process is used to separate two miscible liquids.

What is the solution containing the maximum concentration of a solute and additional solute will not dissolve in it?

  1. Saturated solution

  2. Miscible solution

  3. Immiscible solution

  4. Unsaturated solution

  5. Homogeneous solution


Correct Option: A
Explanation:

Yes, in a saturated solution, one cannot add more of a solute.

In which of the following situations is sieving used?

  1. Used for the separation of slightly larger sized impurities.

  2. Used to separate heavier and lighter components of a mixture.

  3. Used when components of a mixture have different sizes.

  4. Used to separate two immiscible liquids.

  5. Used to remove tiny particles from liquids.


Correct Option: C
Explanation:

The method used is sieving.

Which of the following substances is called pure?

  1. Steel

  2. Diamond

  3. Air

  4. Soil

  5. Ocean water


Correct Option: B
Explanation:

Yes, it is a pure substance. It is made up of only one component that is carbon.

Which of the following is a type of mixture in which the composition is uniform?

  1. Solute

  2. Homogeneous

  3. Solvent

  4. Heterogeneous

  5. Screen


Correct Option: B
Explanation:

It is a mixture in which the composition is uniform.

What is the boiling point of pure water?

  1. 97.5 degree Celsius

  2. 100 degree Celsius

  3. 290 degree Celsius

  4. 300 degree Celsius

  5. 100.7 degree Celsius


Correct Option: B
Explanation:

It is the boiling point of pure water.

Which of the following is/are used in electric water filters for filtering solid impurities from water?

  1. UV rays

  2. Resins

  3. Ceramic

  4. Cellulose

  5. Plastic


Correct Option: D
Explanation:

It is a filter paper which filters the solid impurities.

Which of the following statements is true?

  1. A mixture of lemon juice and water can be separated by filtration.

  2. Sugar can be separated from tea by the process of filtration.

  3. Seeds of paddy are separated from stalks by the process of winnowing.

  4. A mixture of ethanol and water can be separated by fractional distilation.

  5. Sand from water can be separated by sieving.


Correct Option: D
Explanation:

Fractional distilation is used to separate two miscible liquids.

Which of the following is an example of heterogeneous mixture?

  1. Mixture of alcohol and water

  2. Blood

  3. Sand

  4. Wine

  5. Hard alcohol


Correct Option: C
Explanation:

Yes, it is an example of a heterogeneous mixture. A heterogeneous mixture is made of different substances that remain physically separate. Heterogeneous mixtures always have more than one phase.

Heating of iodine and camphor is the process of

  1. sedimentation

  2. sublimation

  3. decantation

  4. evaporation

  5. boiling


Correct Option: B
Explanation:

On heating, these convert directly from solid to gas.

The process of separating grain from stalk is called

  1. ginning

  2. threshing

  3. handpicking

  4. winnowing

  5. sieving


Correct Option: B
Explanation:

It is the process that is used to separate grain from stalks.

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