Class 10 / Science
Class 10 Science Metals and Non-metals Notes
Notes on physical and chemical properties of metals and non-metals, reactivity series, extraction, corrosion, and alloys.
advancedRevision notes
Key points
- Metals are generally lustrous, malleable, ductile, and good conductors.
- Non-metals are generally poor conductors and may be brittle in solid form.
- Reactive metals displace less reactive metals from their salt solutions.
- Corrosion is the gradual destruction of metals by air, moisture, or chemicals.
Reactivity and displacement
The reactivity series arranges metals by their tendency to react.
A more reactive metal can displace a less reactive metal from its salt solution.
Extraction and corrosion
Metals are extracted from ores using methods based on their reactivity.
Rusting of iron can be reduced by painting, galvanisation, alloying, or oiling.
Quick practice
- Why are metals used for wires?
- What is a displacement reaction?
- Define corrosion.
- Name one alloy and its use.
Related practice
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