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प्रश्न
Select the correct answer from the choice given below.
A compound
पर्याय
nitrogen
ozone
zinc chloride
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उत्तर
zinc chloride
संबंधित प्रश्न
Write true or false
The constituents of a mixture can only be separated by chemical means.
What is the difference between a pure substance and a mixture ?
What is the proportion of element present in the following compound?
H2O
What is the proportion of element present in the following compound?
CO2
State three differences between water and air.
Write the molecular formulae of compound hydrogen sulphide.
Write the molecular formulae of compound lead sulphide.
Give the example of a compound containing carbon and oxygen.
Tabulate a comparative chart – to differentiate between elements, compounds, and mixtures. Differentiate them with reference to properties
What is the molecular formula of the following compound?
Hydrochloric acid
What is the molecular formula of the following compound?
Sulphuric acid
Explain the difference between Mixture and compounds.
Explain the characteristics of compounds
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.
Sodium chloride is used as table salt and for flavoring and preserving food.
Classify the following as element and compound,
- Silver
- Ammonia
- Water
- Mercury.
Complete the table
| Compound | Constituent elements |
| Sodium carbonate | Sodium, Carbon. Oxygen |
| Water | |
| Calcium oxide | |
| Sugar | Carbon, Hydrogen, Oxygen |
Reason out
Sand is also known as silica.
A compound has a fixed ______.
