Chemistry
Grade-8
Easy
Question
Which of the following solvent can be used to separate common salt from sulphur powder without using water as solvent?
- Hydrochloric acid
- Benzene
- Iodine solution
- Carbon disulphide
Hint:
Carbon disulphide
The correct answer is: Carbon disulphide
To separate the mixture of common salt and sulphur without using water
We use Carbon disulphide for it.
Firstly we dissolve the mixture into carbon disulphide it dissolves sulphur into it.
Than we use fiterate to separate the residue. We get sulphur solution and the common salt and sand left behind .
Evaporates the sulphur solution in open . Carbon disulphide get evaporates and crystal of sulphur we get .
Related Questions to study
Chemistry
Complete following analogy:
Drugs from the blood : chromatography :: Salt from a mixture of sand and salt : ………
Complete following analogy:
Drugs from the blood : chromatography :: Salt from a mixture of sand and salt : ………
Complete following analogy:
Drugs from the blood : chromatography :: Salt from a mixture of sand and salt : ………
Complete following analogy:
Drugs from the blood : chromatography :: Salt from a mixture of sand and salt : ………
ChemistryGrade-8
Chemistry
The mixture of iodine and salt can be separated by using:
The mixture of iodine and salt can be separated by using:
ChemistryGrade-8
Chemistry
Which of the following apparatus is not needed during the process of sublimation?
Which of the following apparatus is not needed during the process of sublimation?
ChemistryGrade-8
Chemistry
Separation by magnet is most beneficial for separating:
Separation by magnet is most beneficial for separating:
ChemistryGrade-8
Chemistry
Identify the incorrect statement/s from the following:
(i) Crystallization is better than evaporation because some substance might get decomposed on heating.
(ii) Sometimes, sublimation can be used to separate the salt from sea water.
(iii) A mixture of iron fillings and aluminium powder can be separated by a magnet.
Identify the incorrect statement/s from the following:
(i) Crystallization is better than evaporation because some substance might get decomposed on heating.
(ii) Sometimes, sublimation can be used to separate the salt from sea water.
(iii) A mixture of iron fillings and aluminium powder can be separated by a magnet.
ChemistryGrade-8
Chemistry
A mixture of A and B is taken in China dish. If the magnet is brought near it, substance B gets attracted to this magnet. This substance B clings to the poles of magnet and gets separated. The remaining substance A when heated, it directly converts into its vapours.
Identify these substances A and B of given mixture from the following:
A mixture of A and B is taken in China dish. If the magnet is brought near it, substance B gets attracted to this magnet. This substance B clings to the poles of magnet and gets separated. The remaining substance A when heated, it directly converts into its vapours.
Identify these substances A and B of given mixture from the following:
ChemistryGrade-8
Chemistry
Study the given flow chart and choose the correct statements.
I. X is water and Y is carbon disulphide.
II. The property used to separate the mixture is solubility of different components in different solvents.
III. Sulphur is soluble in carbon disulphide and salt and coal are insoluble in water and carbon disulphide.
Study the given flow chart and choose the correct statements.
I. X is water and Y is carbon disulphide.
II. The property used to separate the mixture is solubility of different components in different solvents.
III. Sulphur is soluble in carbon disulphide and salt and coal are insoluble in water and carbon disulphide.
ChemistryGrade-8
Chemistry
Which of the following method is used to separate the chalk powder from salt:
Which of the following method is used to separate the chalk powder from salt:
ChemistryGrade-8
Chemistry
Identify the substance which is not sublime from the following?
Identify the substance which is not sublime from the following?
ChemistryGrade-8
Chemistry
Which of the following method is not used to separate the solid-solid mixture:
Which of the following method is not used to separate the solid-solid mixture:
ChemistryGrade-8
Chemistry
The solid substance which undergoes sublimation is called as.
The solid substance which undergoes sublimation is called as.
ChemistryGrade-8
Chemistry
What happens to the atoms during the process of sublimation?
What happens to the atoms during the process of sublimation?
ChemistryGrade-8
Chemistry
Which of the given substance cannot dissolves in the water?
Which of the given substance cannot dissolves in the water?
ChemistryGrade-8
Chemistry
During sublimation process, the ammonium chloride is collected at:
During sublimation process, the ammonium chloride is collected at:
ChemistryGrade-8
Chemistry
Magnetic separation is used to separate those mixture in which:
Magnetic separation is used to separate those mixture in which:
ChemistryGrade-8
