Advertisements
Advertisements
प्रश्न
What are the advantages of chromatography?
Advertisements
उत्तर
- A very small quantity of the substance can be separated.
- Components with very similar physical and chemical properties can be separated.
- It identifies the different constitutes of a mixture.
- It also helps in quantitive estimation of components of a mixture.
APPEARS IN
संबंधित प्रश्न
Name the substance you will add to speed up sedimentation.
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Vinegar
What is meant by H20 and 3H2O
Name: A form of carbon used as a gem
Tick (√) the correct alternative from the choice given for the following statement.
Sugar is a compound which consists of the elements
Represent with the help of a simple chart how matter is classified into pure or impure substances & further into elements, compounds & mixtures, with elements further segmented.
Give a reason for the following statement :
The filter paper made into a cone & placed in a funnel for filtering out the solid particles in a solid-liquid mixture should be moistened before placing it.
Assertion: Air is a mixture of elements only.
Reason: Only nitrogen, oxygen and neon gases exist in air.
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
Name a non-metal which is required for combustion.
Give the chemical formula for cane sugar.
