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प्रश्न
Give two applications of chromatography.
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उत्तर
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संबंधित प्रश्न
Give two examples for the following: Metals
Tick the most appropriate answer
Solutions are
- heterogeneous mixtures.
- compounds
- homogeneous mixtures.
- elements
Fill in the blank
Chalk powder dissolved in water is an example of a Chalk powder dissolved in water is an example of a _________.
Give one example for the following types of mixtures :
solid-liquid heterogenous mixture.
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Vinegar
Indicate whether the following statement is true or false:
Molecules can exist independently.
Complete the statement given below by filling in the blank with the correct word.
From the elements nitrogen, chlorine, bromine, the element present in the atmosphere is ________.
The diagram represents fractional distillation for the separation of mixtures. Answer the following :
- Can two immiscible liquids be separated by this process?
- Separation of liquids by this process is based on which physical property?
- If methyl alcohol & water are to be separated, which liquid would remain in flask ‘X’ after condensation.
- Give a reason for the above answer.
- State the purpose of the fractionating column in the apparatus.
Elements are made up of______ kinds of atoms.
Classify the following as elements and compounds.
Water, Common salt, Sugar, Carbon dioxide, Iodine and Lithium
