Advertisements
Advertisements
प्रश्न
Write the names of elements from the following symbol:
Pt
Advertisements
उत्तर
Pt- Platinum
संबंधित प्रश्न
What are the different types of mixtures ?
Define a pure substance. How many types of pure substances do you know?
Give two examples of Noble gases.
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name – a gas with a pungent, choking odour which is lighter than air
State four differences between – elements, compounds and mixtures with suitable examples.
Select the correct answer to the statement given below:
A non-metal which exists in the liquid state.
Differentiate between homogenous & heterogeneous mixtures.
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 ___________.
Reason out
Elements are called semimetals.
