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प्रश्न
Name a non-metal which is a good conductor of electricity.
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उत्तर
Graphite is a non-metal that is a good conductor of electricity.
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संबंधित प्रश्न
The inter-molecular space is maximum in
Name the terms for the particles of matter which may or may not have independent existence.
Give one difference between atoms and molecules.
Define the following term of Atom .
Write true or false for each statement. Rewrite the false statement correctly.
Matter cannot exist in different states.
What are the conditions for 'something' to be called 'matter'?
Out of solids, liquids and gases, which one has :
- maximum movement of particles ?
- maximum interparticle attractions ?
- minimum spaces between particles ?
What are pure substances ? Give two examples of pure substances.
Which of the following substances are elements ?
Water, Salt, Mercury, Iron, Marble, Diamond, Wood, Nitrogen, Air, Graphite, Hydrogen, Oxygen, Sugar, Chlorine
State one property in which a solution of sugar in water resembles a mixture of sugar and sand, and one property in which it differs from it.
Define solvent.
Which of the following will show Tyndall effect ? Why ?
- Salt solution
- Starch solution
- Milk
- Copper sulphate solution
Milk of Magnesia is :
State whether the following statement are true or false :
Alcohol can be separated from a mixture of alcohol and water by a separating funnel.
Name the process which can be used to purify an impure sample of copper sulphate.
What is fractional distillation ? What is the use of fractionating column in fractional distillation ?
A teabag placed in a cup of hot water will diffuse into the water.
Boiling refers to the process by which a substance changes from the liquid to the gaseous state at its ______ point.
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
Write a scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
