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प्रश्न
Fill in the blank
In a _______ the substances are not combined chemically.
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उत्तर
In a mixture the substances are not combined chemically.
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संबंधित प्रश्न
Write true or false
Handpicking can be used as a separation technique if the particle size of the constituents of the mixture is the same.
What are the different types of mixtures ?
The methods of separating components of a given mixture are based on the
What is the molecular formula of the following compound?
glucose
Write the chemical formula and name the elements present in the following compounds.
- Sodium chloride
- Potassium hydroxide
- Carbon dioxide
- Calcium oxide
- Sulphur dioxide
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 |
Mention any four compounds and their uses.
State whether true or false. If false, correct the statement.
A compound cannot be broken into simpler substances chemically.
What is meant by compound?
A compound has a fixed ______.
