Tag: process of separating components of a mixture

Questions Related to process of separating components of a mixture

Iron and brass paper clips can be separated from each other by

chemistry mix and separate dry methods of separation process of separating components of a mixture method of separation

  1. Magnetic separation

  2. Chromatography

  3. Centrifugation

  4. All of above

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Correct Option: A
Explanation:

Magnetism is a form of separating mixtures which involves using a magnet to attract another magnetic object away from the substance it is in. Iron gets attracted towards magnet and are separated from brass.

A mixture of iron particles and sand can be separated by:

chemistry mix and separate dry methods of separation process of separating components of a mixture method of separation

  1. Magnetic separation

  2. Centrifugation

  3. Sublimation

  4. Crystallization

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Correct Option: A
Explanation:

A mixture with iron filings as one of the components can be separated using a magnet to attract the iron particles away from the mixture.

Magnetic separation is a process in which magnetically susceptible material is extracted from a mixture using a:

chemistry mix and separate dry methods of separation process of separating components of a mixture method of separation

  1. Frictional force

  2. Gravitational force

  3. Both a and b

  4. Magnetic force

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Correct Option: D
Explanation:

Magnetic separation is a process in which magnetically susceptible material is extracted from a mixture using a magnetic force. This separation technique can be useful in mining iron as it is attracted to a magnet.

The various methods for separation of solid-solid mixture includes:

chemistry mix and separate dry methods of separation process of separating components of a mixture method of separation

  1. fractional distillation

  2. leaching

  3. magnetic separation

  4. centrifuge

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Correct Option: B,C
Explanation:

Fractional distillation is used to separate two liquid mixture based on difference in their boiling point.

centifuge is used to  separate solid from liquid,
Leaching and magnetic separation can be used to separate solid- solid mixture.

The separation of solid particles based on size of particles is known as:

chemistry mix and separate dry methods of separation process of separating components of a mixture method of separation

  1. distillation

  2. centrifuge

  3. screening

  4. wet milling

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Correct Option: C
Explanation:

The separation of solid particles based on size is known as screening.

Which technique could be used to obtain the elements X and Y from the compound $XY$?

chemistry mix and separate dry methods of separation process of separating components of a mixture method of separation

  1. Filtration

  2. Distillation

  3. Electrolysis

  4. Crystallisation

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Correct Option: C
Explanation:

To separate elements X and Y from the compound XY we have to break it into ions,

and the process of breaking compound into its ions are known as electrolysis.

Identify the methods which are used for separation.

chemistry mix and separate dry methods of separation process of separating components of a mixture method of separation

  1. Handpicking

  2. Threshing

  3. Winnowing

  4. All of the above

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Correct Option: D
Explanation:

Handpicking, winnowing, sieving, sedimentation, decantation and filtration are some of the methods of separating substances from their mixtures. 

 Sieving allows the fine particles to pass through the holes of the sieve while the bigger flour particles remain in the sieve.

chemistry mix and separate dry methods of separation process of separating components of a mixture method of separation

  1. True

  2. False

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Correct Option: A
Explanation:

 Sieving allows the fine flour particles to pass through the holes of the sieve while the bigger impurities remain in the sieve.


There is a mixture of X, Y and Z. If the mixture of X and Y can be separated by magnetic separation and the mixture of Y and Z can be separated by distillation.
The different states of X, Y and Z are respectively -

chemistry mix and separate dry methods of separation process of separating components of a mixture method of separation

  1. Solid, solid, liquid.

  2. Solid, liquid, solid.

  3. All are liquids.

  4. All are solids.

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Correct Option: A
Explanation:

Since X, Y can be separated by magnetic separation so X, Y are solids. 

Y, Z can be separated by distillation method therefore, Y, Z must be solid liquid mixture. 
Already we know Y is a solid hence, Z is a liquid.

Hence, option (A) is the correct answer.

In a mixture of X and Y, X can be separated from Y by magnetic separation.

Which of the following pairs will form X and Y?

chemistry mix and separate dry methods of separation process of separating components of a mixture method of separation

  1. Sand, sawdust.

  2. Iron, sulphur.

  3. Iodine, sand.

  4. Gun powder and sawdust.

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Correct Option: B
Explanation:

X, Y are two solids making a mixture. 

One is component is magnetic, whereas, other is non-magnetic. 
Hence, the mixture must be of iron and sulphur.

Therefore, option (B) will be the correct answer.