Tag: sedimentation, decantation and filtration

Questions Related to sedimentation, decantation and filtration

If the constituents of a solid-liquid mixture have different masses, then we can separate them using:

chemistry separation of matter sedimentation, decantation and filtration other methods of separation separation methods

  1. sublimation

  2. centrifugation

  3. winnowing

  4. evaporation

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Correct Option: B
Explanation:

Centrifugation is a technique which involves the application of centrifugal force to separate particles from a solution. The larger the size and the larger the density of the particles, the faster they separate from the mixture. Example- washing machine works on the principle of centrifugation.

State a method to separate a solid-liquid mixture containing a soluble solid in the liquid components.

chemistry separation of matter sedimentation, decantation and filtration other methods of separation separation methods

  1. Fraction distillation

  2. Filtration

  3. Sedimentation

  4. Distillation

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Correct Option: D
Explanation:

A solid-liquid mixture containing a soluble solid in the liquid components can be separated by distillation.

Which method is used to separate salt from the salt water?

chemistry separation of matter sedimentation, decantation and filtration other methods of separation separation methods

  1. Filtration

  2. Distillation

  3. Evaporation

  4. Sedimentation

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Correct Option: C

Select the methods to separate a solid-liquid mixture containing an insoluble solid in the liquid components. 

chemistry separation of matter sedimentation, decantation and filtration other methods of separation separation methods

  1. Sedimentation

  2. Filtration

  3. Distillation

  4. Fractional distillation

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Correct Option: A,B

Which of the following can be used for Solid-Solid mixture separation?

chemistry separation of matter sedimentation, decantation and filtration other methods of separation separation methods

  1. Mechanical separation

  2. Magnetic separation

  3. Gravity separation

  4. All of above

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Correct Option: D

Water is said to be permanently hard when it contains:

chemistry separation of matter sedimentation, decantation and filtration other methods of separation separation methods

  1. chloride and sulphates of Mg and Ca

  2. bicarbonate of Na and K

  3. carbonate of Na and K

  4. none of these

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Correct Option: A

Which of the following country leads the world in silk production?

chemistry separation of matter sedimentation, decantation and filtration other methods of separation separation methods

  1. India

  2. Sri lanka

  3. Nepal

  4. China

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Correct Option: D
Explanation:

China leads the world in silk production followed by India.

Which technique is used to separate sand from a mixture of sand and water?

chemistry separation of matter sedimentation, decantation and filtration other methods of separation separation methods

  1. Decantation

  2. Evaporation

  3. Distillation

  4. Fractional distillation

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Correct Option: A
Explanation:

Sand settles at the bottom of water so the water can be poured into another container.Thus process is knwon as decantation.


Hence,option A is correct.

_____ is a method of separating suspended particles of a substance from liquid.

chemistry separation of matter sedimentation, decantation and filtration other methods of separation separation methods

  1. Chromatography

  2. Centrifugation

  3. Distillation

  4. Magnetic separation

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Correct Option: B
Explanation:

Centrifugation is a method of separating suspended particles of a substance from liquid.

Centripetal force is applied with a centrifuge to sediment heterogeneous mixtures. It is used in industrial and laboratory settings. It is used in the separation of  two immiscible substances.

When an organic compound is present in an aqueous medium and is less soluble in any organic solvent then it is separated by?

chemistry separation of matter sedimentation, decantation and filtration other methods of separation separation methods

  1. Continuous extraction

  2. Distillation

  3. Chromatography

  4. Sublimation

Show answer
Correct Option: A
Explanation:

When an organic compound is present in an aqueous medium and is less soluble in any organic solvent then it is seaparated by continuous extraction.

Hence, option A is correct.