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प्रश्न
Elements are the______ form of pure substances.
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उत्तर
Elements are the simplest form of pure substances.
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संबंधित प्रश्न
Give one example for the following types of mixtures:
liquid-gas homogenous mixture
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Vinegar
State four differences between compounds and mixtures.
Name: a Liquid Non-metal
Give one use of the following substance:
Brass
Select the correct answer from A, B, C, D & E for the statement given below :
A metalloid.
Select the correct answer from A, B, C, D & E for the statement given below :
A mixture consisting of elements & a compound.
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.
Select the correct answer from the choice given below to complete the sentence :
An example of a monoatomic molecule is ___________.
Water contains _____ and _____ element.
