Advertisements
Advertisements
प्रश्न
What is the proportion of element present in the following compound?
CaO
उत्तर
| Compound | Element | Proportion of Element |
| CaO | Ca : O | 5 : 2 |
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
Fill in the blank
In a _______ the substances are not combined chemically.
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 are the different types of mixtures ?
Name the elements present in Sugar
What is the proportion of element present in the following compound?
H2O
State four differences between compounds and mixtures.
Write the molecular formulae of compound calcium oxide.
Write the molecular formulae of compound hydrogen sulphide.
Write the molecular formulae of compound carbon monoxide
Write the molecular formulae of compound lead sulphide.
State two characteristics of water which prove that it is a – compound.
What is the molecular formula of the following compound?
Sodium chloride
What is the molecular formula of the following compound?
Methane
Explain the characteristics of compounds
Assertion: Oxygen is a compound.
Reason: Oxygen cannot be broken down into anything simpler.
Mention the uses of the following compounds.
- Baking soda
- Bleaching powder
- Quick lime
What is meant by compound?
Complete the table
| Compound | Constituent elements |
| Sodium carbonate | Sodium, Carbon. Oxygen |
| Water | |
| Calcium oxide | |
| Sugar | Carbon, Hydrogen, Oxygen |
Name the compounds used in fertilizers.
