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प्रश्न
What are compounds? Give two examples.
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उत्तर
A compound is a pure substance that is formed when the atoms of two or more elements combine chemically in definite proportions.
Example : H2O, NaCl,
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संबंधित प्रश्न
Name the elements present in Marble
What is the proportion of element present in the following compound?
CO2
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.
Assertion: Oxygen is a compound.
Reason: Oxygen cannot be broken down into anything simpler.
State whether true or false. If false, correct the statement.
A compound cannot be broken into simpler substances chemically.
Which of the following are not compounds?
- Chlorine gas
- Potassium chloride
- Iron
- Iron sulphide
- Aluminium
- Iodine
- Carbon
- Carbon monoxide
- Sulphur powder
The other name for potassium hydroxide is caustic potash.
When does the pressure of the gas increase?
