Which of the following mixtures can be separated by the process of magnetic separation?
Which of the following mixtures can be separated by the process of magnetic separation?
The correct option is B Iron + sand
Explanation for the correct option: b) When there is one substance in a combination that exhibits magnetic properties, the magnetic separation approach is quite useful. The magnetic materials are separated using powerful magnets. Because iron is a magnetic material that is attracted by magnets, the mixture of iron and sand can be extremely well separated by magnetic separation. Magnets do not attract the sand.
Explanation for the correct options: a) Dissolve the sand and chalk powder mixture in water and filter the result. the sand is collected in the filter paper as a residue; to obtain chalk powder, evaporate the filtrate.
c) As a solvent, carbon disulphide or carbon tetrachloride is utilised. The sulphur dissolves in the solvent, while the undissolved calcium is filtered out. Evaporation can be used to extract the dissolved sulphur from the solution.
d) Sand and common salt can be removed by dissolving the solution in water. The salt will dissolve in water and sand but will not dissolve in the water. So we filter out the sand and boil the water to get the salt.
Conclusion: Hence, (b) is the correct option.
Iron + sand
Explanation for the correct option: b) When there is one substance in a combination that exhibits magnetic properties, the magnetic separation approach is quite useful. The magnetic materials are separated using powerful magnets. Because iron is a magnetic material that is attracted by magnets, the mixture of iron and sand can be extremely well separated by magnetic separation. Magnets do not attract the sand.
Explanation for the correct options: a) Dissolve the sand and chalk powder mixture in water and filter the result. the sand is collected in the filter paper as a residue; to obtain chalk powder, evaporate the filtrate.
c) As a solvent, carbon disulphide or carbon tetrachloride is utilised. The sulphur dissolves in the solvent, while the undissolved calcium is filtered out. Evaporation can be used to extract the dissolved sulphur from the solution.
d) Sand and common salt can be removed by dissolving the solution in water. The salt will dissolve in water and sand but will not dissolve in the water. So we filter out the sand and boil the water to get the salt.
Conclusion: Hence, (b) is the correct option.
