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प्रश्न
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.
उत्तर
Chromatography – Ink
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संबंधित प्रश्न
Give two examples for the following: Metals
Name a soft metal.
Tick the most appropriate answer.
The constituents of a mixture are present in
- a fixed ratio
- a variable ratio,
- the ratio of 2: 1
- none of these
Give two examples of the following.
Non-metals which are lustrous
Define: Atomicity
Answer the following question:
What do you understand by the statement: ‘metals are ductile and malleable’?
Answer the following question:
When iron is mixed with sulphur at room temperature, it does not form a compound. Why?
Complete the statement given below by filling in the blanks with the correct words.
Atom contains ________ , with positively charged _____.
Select the correct answer from the choice given below.
The negatively charged particles in an atom
With reference to elements – define the term ‘molecule’. Give two examples each of a monoatomic, diatomic & polyatomic molecule.
