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प्रश्न
Explain the term compounds.
उत्तर
A compound is a pure substance made up of two or more different elements combined chemically in a fixed proportion.
संबंधित प्रश्न
Fill in the blank
In a _______ the substances are not combined chemically.
What are the different types of mixtures ?
Name the elements which form water.
How will you justify that water is a compound?
Name the elements present in Sugar
Name the elements present in Marble
What is the proportion of element present in the following compound?
CO2
What is the proportion of element present in the following compound?
CaO
State the information obtained from the formula of a compound.
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
Tabulate a comparative chart – to differentiate between elements, compounds, and mixtures. Differentiate them with reference to existence
What is the molecular formula of the following compound?
Hydrochloric acid
What is the molecular formula of the following compound?
Methane
Explain the difference between Mixture and compounds.
Explain the term mixture.
What are compounds? Give two examples.
Assertion: Air is a compound.
Reason: Air consists of carbon dioxide.
State whether true or false. If false, correct the statement.
Aspirin is composed of 60% Carbon, 4.5% Hydrogen and 35.5% Oxygen by mass. Aspirin is a mixture.
Which of the following are not compounds?
- Chlorine gas
- Potassium chloride
- Iron
- Iron sulphide
- Aluminium
- Iodine
- Carbon
- Carbon monoxide
- Sulphur powder
