Advertisements
Advertisements
प्रश्न
Give Two Examples for Each of the Following: Non-metals
Advertisements
उत्तर
Carbon, sulphur, oxygen.
APPEARS IN
संबंधित प्रश्न
Give two examples for the following: Metals
Define Elements.
Indicate whether the following statement is true or false:
Ozone is a triatomic molecule
Tick (√) the correct alternative from the choice given for the following statement.
Gold is used to make jewellery because
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.
There are ______ number of known elements.
Give an example for the elements derived from their Latin names.
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.
Give the chemical formula for cane sugar.
