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प्रश्न
Explain the difference between Metals and non-metals.
उत्तर
S. No. | Physical properties | Metals | Non-metals |
1. | Malleability and ductility | They can be beaten into sheets and wires. | They cannot form sheets or wires. |
2. | Sonority | Metals are sonorous; they produce a ringing sound when beating. | They are non−sonorous. |
3. | Conduction | They conduct heat and electricity. | Non-metals do not allow heat and electricity to pass through them. |
4. | Chemical Properties | Metals generally react by losing electrons, forming basic oxides, and conducting electricity and heat. | Non-metals usually gain or share electrons, form acidic or neutral oxides, and are poor conductors of electricity and heat. |
5. | Nature of oxides | Metallic oxides are basic. | Oxides of non−metals are acidic. |
6. | Reaction with water | Metals react with water. | Non−metals do not react with water. |
7. | Reaction with acids | Metals react with acids to produce hydrogen gas. | They generally do not react with acids. |
संबंधित प्रश्न
Give one example for the following type of mixtures
solid-solid homogenous mixture.
Name the technique that you use if only the solid component of a solution is required.
Give two applications of chromatography.
Answer the following question:
What do you understand by the statement: ‘metals are ductile and malleable’?
Find the atomicity of the Following molecule:
Aluminium Suiphide
Find the atomicity of the Following molecule:
Carbon Monoxide
Give the name of the radical - CO3
Select the correct answer from A, B, C, D & E for the statement given below :
A non-metal that is lustrous.
The diagram represents fractional distillation for the separation of mixtures. Answer the following :
- Can two immiscible liquids be separated by this process?
- Separation of liquids by this process is based on which physical property?
- If methyl alcohol & water are to be separated, which liquid would remain in flask ‘X’ after condensation.
- Give a reason for the above answer.
- State the purpose of the fractionating column in the apparatus.
Match the following:
1. | Co2 | a. | Robert Boyle |
2. | Sulfur | b. | Making mobile phones |
3. | Element | c. | triatomic molecule |
4. | Gallium | d. | Polyatomic molecule |