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प्रश्न
Name a liquid which can be classified as a pure substance and conducts electricity.
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उत्तर
Mercury is a liquid metal that can be classified as a pure substance and a good conductor of electricity.
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संबंधित प्रश्न
Define matter. Give four examples of matter.
What are pure substances ? Give two examples of pure substances.
Define a compound. Give two points of evidence to show that sodium chloride is a compound.
On the basis of composition of matter, milk is considered to be :
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which one has the smallest particles ?
How much water should be mixed with 12 mL of alcohol so as to obtain 12 % alcohol solution ?
Which of the following is a sol ?
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In what respects does a true solution differ from a colloidal solution ?
How will you test whether a given solution is a colloidal solution ?
Define the emulsion. Give one example.
Name the process you would use to separate a mixture of water and alcohol.
Name the process by which common salt is obtained from sea-water.
Name the process by which common salt is purified.
Describe a method for separating a mixture of iron filings and sulphur powder other than that by using a magnet.
The technique which is used to separate particles of a solid suspended in a liquid quickly is called :
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- What could X be ?
- What could Y be ?
- Name the process Z.
- Which process would you use to recover both the components X and Y from tincture of iodine ?
- Which process can be used to recover only component Y from tincture of iodine ?
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