Chemistry
Grade-8
Easy
Question
The principle of chromatography is based on
- Different solubilities of substances
- Same solubilities of substances
- Rotor
- Test tube holder
Hint:
Chromatography is a laboratory technique for the separation of a mixture into its components.
The correct answer is: Rotor
Chromatography is a laboratory technique for the separation of a mixture into its components. The mixture is dissolved in a fluid solvent (gas or liquid) called the mobile phase, which carries it through a system (a column, a capillary tube, a plate, or a sheet) on which a material called the stationary phase is fixed.
Chromatography is a separation method where the analyte is combined within a liquid or gaseous mobile phase., which is pumped through a stationary phase. The principle of chromatography is based on different solubilities of substances.
Related Questions to study
Chemistry
In centrifugation, the centrifuge consists of a centrifuge tube holder called
In centrifugation, the centrifuge consists of a centrifuge tube holder called
ChemistryGrade-8
Chemistry
Which among the following mixture is separated by using the principle of simple distillation?
Which among the following mixture is separated by using the principle of simple distillation?
ChemistryGrade-8
Chemistry
Match the entries of Column A with those of Column B.
Therefore the correct option is choice 1
Match the entries of Column A with those of Column B.
ChemistryGrade-8
Therefore the correct option is choice 1
Chemistry
Chromatography is used to separate
Chromatography is used to separate
ChemistryGrade-8
Chemistry
Identify the equipment which is used to cool down the liquid during the distillation from the following
Identify the equipment which is used to cool down the liquid during the distillation from the following
ChemistryGrade-8
Chemistry
Which of the following is used to separate the mixture of solid and liquid substances?
Which of the following is used to separate the mixture of solid and liquid substances?
ChemistryGrade-8
Chemistry
Which of the following solvent can be used to separate common salt from sulphur powder without using water as solvent?
Which of the following solvent can be used to separate common salt from sulphur powder without using water as solvent?
ChemistryGrade-8
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