18 Questions
What is the main purpose of chromatography?
To separate components of a mixture
Where does the name 'chromatography' come from?
Greek word meaning Colour
Who discovered the chromatography technique?
Tswett
What are the two phases used in chromatography for separation?
Solid phase and liquid phase
In chromatography, what does the mobile phase consist of?
Mixtures of solvents
How is chromatography classified based on the stationary phase used?
Adsorption Chromatography and Partition Chromatography
What is the principle of Adsorption Chromatography based on?
Differential adsorption
What type of stationary phase materials can be used in Column Chromatography?
Alumina and Silica gel
What is the function of the stopcock at the bottom of the column in Column Chromatography?
Controls the flow of mobile phase
How do solutes get separated in Column Chromatography?
By differential adsorption on the stationary phase
Which component is retained on the column in Column Chromatography?
The most strongly adsorbed component
What happens to the less strongly adsorbed component in Column Chromatography?
It desorbs first and leaves the column first
Which type of mixture is a solution considered to be?
Homogeneous mixture
In which state of matter are the particles held in perfect order, leading to definite shape and volume?
Solid
Which of the following is an example of a heterogeneous mixture?
Suspension of an insoluble solid in a liquid
What is the primary difference between a compound and a mixture?
Compounds involve two or three elements, while mixtures involve multiple substances.
Which state of matter has particles that are far apart compared to those in liquid and solid states?
Gas
What happens to the three states of matter when conditions of temperature and pressure change?
They become interconvertible.
Learn about the principles and types of Adsorption Chromatography, including Column Chromatography with different stationary phase materials like Alumina and Silica gel.
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