Advertisements
Advertisements
Question
Tabulate a comparative chart – to differentiate between elements, compounds, and mixtures. Differentiate them with reference to properties
Advertisements
Solution
Properties
Elements – Elements have a definite set of properties. Elements classified into metal and non-metals each with its own properties.
Compounds – Compounds have a definite set of properties. Elements of a compound do not retain their original properties.
Mixtures – Mixture not have a definite set of properties. Components of a mixture do retain their original properties.
RELATED QUESTIONS
Fill in the blank
In a _______ the substances are not combined chemically.
Write true or false
The constituents of a mixture can only be separated by chemical means.
Name the elements present in Sugar
Name the elements present in Ammonia
Name the elements present in Marble
Name the elements present in Washing soda
What is the proportion of element present in the following compound?
CO2
Write the molecular formulae of compound hydrogen sulphide.
Write the molecular formulae of compound lead sulphide.
State two characteristics of water which prove that it is a – compound.
Select the correct answer from the choice given below.
A compound
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?
Hydrochloric acid
What is the molecular formula of the following compound?
Sulphuric acid
Explain the term mixture.
What are compounds? Give two examples.
Assertion: Air is a compound.
Reason: Air consists of carbon dioxide.
Mention any four compounds and their uses.
Which of the following are not compounds?
- Chlorine gas
- Potassium chloride
- Iron
- Iron sulphide
- Aluminium
- Iodine
- Carbon
- Carbon monoxide
- Sulphur powder
Complete the table
| Compound | Constituent elements |
| Sodium carbonate | Sodium, Carbon. Oxygen |
| Water | |
| Calcium oxide | |
| Sugar | Carbon, Hydrogen, Oxygen |
