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प्रश्न
State five different characteristics of compounds.
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उत्तर
Five characteristics of a compound:
- Components in a compound are in a definite proportion.
- The compound is always homogenous [i.e. identical composition].
- Particles in a compound are of one kind.
- Compounds have a definite set of properties.
- Elements in the compound do not retain their original properties.
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संबंधित प्रश्न
Name: a Metal Which is a Poor Conductor of Electricity.
Give one use of the following substance:
Coal
Find the atomicity of the Following molecule:
Calcium Chloride
Find the atomicity of the Following molecule:
Acetic Acid
Indicate whether the following statement is true or false:
All elements are artificially prepared
Select the correct answer from the choice given below.
An element which is a poor conductor of heat
Write the names of elements from the following symbol:
Br
‘The modern periodic table consists of elements arranged according to their increasing atomic numbers’. With reference to elements with atomic numbers 1 to 20 only in the periodic table – differentiate them into – metallic elements, metalloids, non-metals & noble gases.
Match the following.
| 1. | Element | Made up of molecules |
| 2. | Compound | Impure substance |
| 3. | Colloid | Settles down on standing |
| 4. | Suspension | Pure substance |
| 5. | Mixture | Made up of atoms |
Name the process associated with the following
A fine beam of light entering through a small hole in a dark room illuminates the particles in its paths.
