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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
Fill in the blank :
The substances which can flow are called ________
Fill in the blank
Any matter which has a definite _______ but no definite shape is called a _______
Fill in the blank
All matter is made up of tiny particles called ______
The best evidence for the existence and movement of particles in liquids was provided by :
What name is given to those elements which are neither good conductors of electricity like copper nor insulators like sulphur ?
The three important metalloids are.............................. and ..........................
Name a metal which can be easily cut with a knife.
Which of the following are not compounds ?
Chlorine gas, Potassium chloride, Iron powder, Iron sulphide, Aluminium foil, Iodine vapour, Graphite, Carbon monoxide, Sulphur powder, Diamond
Which of the following is a sol ?
Shaving cream, Milk, Fog, Soap solution, Hairspray
In what respects does a true solution differ from a colloidal solution ?
Classify the following into solutions, suspensions and colloids :
Soda-water, Milk, Brine, Blood, Ink, Smoke in air, Chalk water mixture, Milk of Magnesia, Shaving cream, Muddy river water.
What is meant by the concentration of a solution ?
What is a suspension ? Give two examples of suspensions.
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Fill in the following blanks with suitable words :
If a mixture contains iron filings as one of the constituents, it can be separated by using a .......................
What is fractional distillation ? What is the use of fractionating column in fractional distillation ?
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
Name a non-metal which exists as a liquid at room temperature.
In Aerosol the dispersed phase is liquid and the dispersion medium is gas.
Which statement is not correct for a mixture
