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प्रश्न
Differentiate metals and non-metals.
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उत्तर
| Metals | Non-Metals |
| Metals are lustrous. They have a shiny | Non metals are non lustrous. They |
| surface | have non- shiny surface |
| Metals are generally hard | Non-metals are generally soft |
| Most metals are bendable | Non-metals are non bendable |
| Most metals can be bent, beaten into sheets and they can drawn into wires | Non-metals are non ductile |
| Most metals are good conductors of electricity | Non-metals are bad conductors of electricity |
| Most metals are good conductors of heat | Non-metals are bad conductors of heat |
| Most metals are making ringing sound when struck. Hence, they are used to make objects like bells | Non-metals does not make any sound when they struck |
| Ex. : Copper, Lead, Tin, Nickel | Ex. : Carbon, Iodine, Sulphur |
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संबंधित प्रश्न
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Vinegar
Find the atomicity of the Following molecule:
Acetic Acid
Give an example of two liquids which form homogenous.
Select the correct answer from A, B, C, D & E for the statement given below :
A noble gas.
Match the separation of components in List I with the most appropriate process in List II.
| List I | List II |
| 1. Naphthalene from naphthalene & sodium chloride. | A: Separating funnel |
| 2. Cream from milk. | B: Sublimation |
| 3. Kerosene oil from kerosene oil & water. | C: Boiling |
| 4. Lead nitrate from an aqueous solution of lead nitrate. | D: Centrifugation |
| 5. Ammonia from an aqueous solution of ammonia. | E: Distillation |
Select the correct answer from the choice given below to complete the sentence :
Compounds are ____________ in nature.
Give a reason for the following statement :
Brass & bronze are examples of mixtures, while copper sulphate & lead nitrate are examples of compounds.
There are ______ number of known elements.
Differentiate between elements and compounds.
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.
