Advertisements
Advertisements
प्रश्न
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
Name a non-metal other than carbon that shows allotropy.
Advertisements
उत्तर
Sulphur, phosphorus
APPEARS IN
संबंधित प्रश्न
Name a soft metal.
Name: an Inert Gas
Answer the following question:
Why are copper and aluminium used to make electric wires?
Give the name of the radical - SO4
Select the correct answer from the choice given below.
The unreactive non-metallic element
Write the names of elements from the following symbol:
Cd
Explain the difference between Metals and non-metals.
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.
Give a reason for the following statement :
The filter paper made into a cone & placed in a funnel for filtering out the solid particles in a solid-liquid mixture should be moistened before placing it.
Give an account of elements known to us.
