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प्रश्न
Define Compounds
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उत्तर
Compounds: Compounds are pure substances composed of two or more elements in definite proportion by mass and has a definite set of properties. The compound is made up of only one kind of molecules
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संबंधित प्रश्न
Select the correct alternative from the choices given for the following statement:
A set of mixture is
Write true or false
The constituents of a mixture can only be separated by chemical means.
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 Ammonia
What is the proportion of element present in the following compound?
H2O
What is the proportion of element present in the following compound?
NO2
Name two compounds which dissolve in water.
Write the molecular formulae of compound carbon monoxide
Give the example of a compound containing hydrogen and oxygen.
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
What is the molecular formula of the following compound?
glucose
Assertion: Air is a compound.
Reason: Air consists of carbon dioxide.
Which of the following are not compounds?
- Chlorine gas
- Potassium chloride
- Iron
- Iron sulphide
- Aluminium
- Iodine
- Carbon
- Carbon monoxide
- Sulphur powder
Write any two properties of a compound.
Complete the table
| Compound | Constituent elements |
| Sodium carbonate | Sodium, Carbon. Oxygen |
| Water | |
| Calcium oxide | |
| Sugar | Carbon, Hydrogen, Oxygen |
