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प्रश्न
What are the advantages of chromatography?
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.
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संबंधित प्रश्न
Tick the most appropriate answer
Solutions are
- heterogeneous mixtures.
- compounds
- homogeneous mixtures.
- elements
Write true or false
All pure substances have characteristic melting and boiling points.
Name: an Inert Gas
Name: Three different forms of carbon
Indicate whether the following statement is true or false:
Molecules combine to form atoms
Complete the statement given below by filling in the blanks with the correct words.
Atom contains ________ , with positively charged _____.
Who are my companions?
| Group 'A' | Group 'B' |
| 1. Stainless steel | (a) Non-metal |
| 2. Silver | (b) compound |
| 3. Bhajani mixture for milling | (c) Mixture |
| 4. Salt | (d) Element |
| 5. Coal | (e) Alloy |
| 6. Hydrogen | (f) Metal |
Write the names of elements from the following symbol:
Cu
Give an example of each mixture having the following characteristics. Suggest a suitable method to separate the components of this mixture
Two or more coloured constituents are soluble in some solvent.
Matter is its simplest form is called ______.
