Tag: dry methods of separation

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Questions Related to dry methods of separation

Multiple choice chemistry pure substances and mixtures: separation of mixtures dry methods of separation process of separating components of a mixture method of separation

The constituents of a heterogeneous mixture are X, Y and Z. 
If mixture of X and Y taken separately then, X can be separated using magnetic separation from Y. If mixture Y and Z is taken then it can be separated using distillation method.

Which of the following mixture can be X, Y, Z?

  1. Iron, salt, water.

  2. Sulphur, carbon disulphide, water.

  3. Gun powder, common salt, water.

  4. Iodine, sand, alcohol.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Iron (X) is magnetic and can be separated from salt (Y). Salt (Y) and water (Z) form a solution that can be separated by distillation. This matches the description.

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

State a method to separate ammonium chloride from a mixture of ammonium chloride and potassium chloride.

  1. Sedimentation

  2. Sublimation

  3. Magnetic separation

  4. Solvent extraction
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ammonium chloride sublimes on heating therefore it is easy to remove it by sublimation from a mixture of ammonium chloride and potassium chloride.

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

Which method can be used to separate two solid mixtures one of which dissolves in a particular solvent and other does not?

  1. Separating funnel

  2. Sublimation

  3. Magnetic separation

  4. Solvent extraction
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The two solid mixtures, one of which dissolves in a particular solvent and other does not, can be separated by solvent extraction method.

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

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

  1. Magnetic separation

  2. Chromatography

  3. Centrifugation

  4. All of above
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

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

  1. Frictional force

  2. Gravitational force

  3. Both a and b

  4. Magnetic force
Reveal answer Fill a bubble to check yourself
D Correct answer
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.

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

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

  1. fractional distillation

  2. leaching

  3. magnetic separation

  4. centrifuge
Reveal answer Fill a bubble to check yourself
B,C Correct answer
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.