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प्रश्न
Explain the term compounds.
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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 ?
Name the elements which form water.
How will you justify that water is a compound?
Name the elements present in Ammonia
Name the elements present in Marble
What is the proportion of element present in the following compound?
CaO
State three differences between water and air.
State the information obtained from the formula of a compound.
Write the molecular formulae of compound carbon monoxide
Give the example of a compound containing carbon 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 Separation of compound
What is the molecular formula of the following compound?
Sulphuric acid
What is the molecular formula of the following compound?
Sodium chloride
Sodium chloride is used as table salt and for flavoring and preserving food.
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
Name a non-metal which is known to form the largest number of compounds.
Which of the following are not compounds?
- Chlorine gas
- Potassium chloride
- Iron
- Iron sulphide
- Aluminium
- Iodine
- Carbon
- Carbon monoxide
- Sulphur powder
Classify the following as element and compound,
- Silver
- Ammonia
- Water
- Mercury.
Name the compounds used in fertilizers.
