Advertisements
Advertisements
प्रश्न
Explain the term compounds.
Advertisements
उत्तर
A compound is a pure substance made up of two or more different elements combined chemically in a fixed proportion.
संबंधित प्रश्न
What are the different types of mixtures ?
The methods of separating components of a given mixture are based on the
State four important characteristics of compounds
What is the proportion of element present in the following compound?
CaO
What is the proportion of element present in the following compound?
NO2
State three differences between water and air.
State four differences between compounds and mixtures.
Write the molecular formulae of compound lead sulphide.
Give the example of a compound containing hydrogen and oxygen.
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 properties
Tabulate a comparative chart – to differentiate between elements, compounds, and mixtures. Differentiate them with reference to Separation of compound
What is the molecular formula of the following compound?
glucose
Write the chemical formula and name the elements present in the following compounds.
- Sodium chloride
- Potassium hydroxide
- Carbon dioxide
- Calcium oxide
- Sulphur dioxide
Assertion: Oxygen is a compound.
Reason: Oxygen cannot be broken down into anything simpler.
Assertion: Air is a compound.
Reason: Air consists of carbon dioxide.
Classify the following as element and compound,
- Silver
- Ammonia
- Water
- Mercury.
A compound has a definite ______.
