Advertisements
Advertisements
प्रश्न
Name the elements present in Washing soda
Advertisements
उत्तर
Elements present in Washing soda:
Sodium, carbon & oxygen
APPEARS IN
संबंधित प्रश्न
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
Select the correct alternative from the choices given for the following statement:
A set of mixture is
Write true or false
A heterogeneous mixture has a uniform composition throughout the mixture.
Write true or false
The constituents of a mixture can only be separated by chemical means.
Write true or false
Handpicking can be used as a separation technique if the particle size of the constituents of the mixture is the same.
What is the difference between a pure substance and a mixture ?
What are the different types of mixtures ?
Name the elements present in Marble
State four differences between compounds and mixtures.
Give the example of a compound containing calcium and oxygen.
State two characteristics of water which prove that it is a – compound.
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?
Hydrochloric acid
Explain the term mixture.
State true of false. If false, give the correct statement.
Compounds and elements are pure substances.
Write the chemical formula and name the elements present in the following compounds.
- Sodium chloride
- Potassium hydroxide
- Carbon dioxide
- Calcium oxide
- Sulphur dioxide
Mention any four compounds and their uses.
Higher-Order Thinking questions:
Why is water considered a compound?
A compound has a fixed ______.
