Advertisements
Advertisements
Question
Name the elements present in Marble
Advertisements
Solution
Elements present in Marble:
Calcium, carbon & oxygen
APPEARS IN
RELATED QUESTIONS
Name the process by which the components of following mixtures can be separated.
- Iron and sulphur
- Ammonium chloride and sand
- Common salt from sea water
- Chaff and grain
- Water and mustard oil
- Sugar and water
Write true or false
A heterogeneous mixture has a uniform composition throughout the mixture.
What is the difference between a pure substance and a mixture ?
State four important characteristics of compounds
Name the elements present in Sugar
Name the elements present in Washing soda
What is the proportion of element present in the following compound?
NO2
State the information obtained from the formula of a compound.
Write the molecular formulae of compound hydrogen sulphide.
Give the example of a compound containing hydrogen and oxygen.
Tabulate a comparative chart – to differentiate between elements, compounds, and mixtures. Differentiate them with reference to the term
What is the molecular formula of the following compound?
Methane
Explain the term mixture.
Match the following.
| Iron | For making wires |
| Copper | Sewing needle |
| Tungsten | As a fuel for ignition in rocket |
| Boron | Making the filament of a bulb |
What is meant by compound?
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 which is known to form the largest number of compounds.
The other name for potassium hydroxide is caustic potash.
Reason out
Sand is also known as silica.
