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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
State four important characteristics of compounds
What is the proportion of element present in the following compound?
NO2
Name two compounds which dissolve in water.
State two characteristics of water which prove that it is a – compound.
Select the correct answer from the choice given below.
A compound
What is the molecular formula of the following compound?
Sodium chloride
What is the molecular formula of the following compound?
glucose
Match the following.
| Iron | For making wires |
| Copper | Sewing needle |
| Tungsten | As a fuel for ignition in rocket |
| Boron | Making the filament of a bulb |
State whether true or false. If false, correct the statement.
A compound cannot be broken into simpler substances chemically.
The other name for potassium hydroxide is caustic potash.
