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प्रश्न
State two characteristics of water which prove that it is a – compound.
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उत्तर
Characteristics of compounds
- Elements in a compound are present in a definite proportion. Example 2 atoms of hydrogen combine with 1 atom of oxygen to give 1 molecule of water (compound) H2 + O = H2O (water)
- Compounds have a definite set of properties
Example: The properties of the compound water are different from the properties of the elements of hydrogen and oxygen in the water.
संबंधित प्रश्न
Name the elements which form water.
How will you justify that water is a compound?
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Select the correct answer from the choice given below.
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What is the molecular formula of the following compound?
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Reason: Air consists of carbon dioxide.
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| Copper | Sewing needle |
| Tungsten | As a fuel for ignition in rocket |
| Boron | Making the filament of a bulb |
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| Water | |
| Calcium oxide | |
| Sugar | Carbon, Hydrogen, Oxygen |
Reason out
Sand is also known as silica.
