Metals and Non Metals Class 10 Full Chapter (Animation) | Class 10 Science Chapter 3 | CBSE | NCERT
Grade booster・2 minutes read
Metals and non-metals have distinct properties, with metals exhibiting luster, malleability, and conductivity, while non-metals are brittle and poor conductors. Various reactions, processes like anodizing, and extraction methods are crucial in understanding the behavior and applications of metals.
Insights
- Metals possess characteristics like metallic luster, malleability, and high melting points, enabling them to conduct heat and electricity efficiently, while also reacting with water and acids to form specific compounds.
- Anodizing is a technique used to enhance the corrosion resistance of metals such as aluminium by creating a protective oxide layer, showcasing the importance of surface treatments in improving material properties.
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Recent questions
What are some properties of metals?
Metals exhibit metallic luster, hardness, malleability, ductility, conduction of heat and electricity, high melting points, and sonority.
What are some characteristics of non-metals?
Non-metals can be solids, liquids, or gases at room temperature, are brittle, bad conductors of heat and electricity, and non-lustrous except for iodine.
How do metals react with water and acids?
Metals react with water to produce metal oxide and hydrogen, while metals react with acids to form salts and hydrogen gas.
What is anodizing and its purpose?
Anodizing is a process to create a thicker protective oxide layer on metals like aluminium, enhancing their resistance to corrosion.
What are the properties of ionic compounds?
Ionic compounds are crystalline solids with high melting and boiling points, soluble in water but insoluble in solvents like petrol, and conduct electricity in aqueous form.
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Summary
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"Metals and Non-Metals: Properties and Reactions"
- Metals like iron, copper, aluminium, magnesium, sodium, and lead exhibit metallic luster, hardness, malleability, ductility, conduction of heat and electricity, high melting points, and sonority.
- Non-metals such as carbon, sulfur, iodine, oxygen, and hydrogen can be solids, liquids, or gases at room temperature, are brittle, bad conductors of heat and electricity, and non-lustrous except for iodine.
- Metals react with water to produce metal oxide and hydrogen, while metals react with acids to form salts and hydrogen gas.
- Anodizing is a process to create a thicker protective oxide layer on metals like aluminium, enhancing their resistance to corrosion.
- Ionic compounds are crystalline solids with high melting and boiling points, soluble in water but insoluble in solvents like petrol, and conduct electricity in aqueous form.
- Metals are extracted from ores through reduction reactions, with enrichment of ores being the initial step, followed by extraction methods based on the metal's position in the reactivity series.
