Class 10 Science — Chapter 3: Metals and Non-metals
Chapter 3: Metals and Non-metals is a chapter in Class 10 Science (NCERT), part of the CBSE NCERT curriculum followed by over 25 million students across India. This chapter covers 8 topics including Physical Properties of Metals, Physical Properties of Non-metals, Exceptions in Physical Properties. BrainWeave provides free AI-powered explanations — by voice or text, in Hindi or English — with no signup required.
What you'll learn
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▸Physical Properties of MetalsCore conceptmalleabilityductilitylustresonorousconductivity
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▸Physical Properties of Non-metalsCore conceptbrittlenon-lustrousinsulatorbrominesulphur
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▸Exceptions in Physical PropertiesCore conceptmercurygalliumgraphitealkali metalsiodine
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▸Reaction of Metals with Oxygen (Air)Core conceptmetal oxideoxidationreactivitycopper(II) oxidetarnishing
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▸Nature of Metal and Non-metal OxidesCore conceptbasic oxideacidic oxidelitmus testalkalisulphur dioxide
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▸Amphoteric Oxidesamphotericaluminium oxidezinc oxidesodium aluminateacid-base reaction
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▸Reactivity Differences and Protective Layersreactivity seriespotassiumsodiumprotective layercorrosion
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▸Anodisinganodisingaluminiumelectrolysisanodeoxide layer
Chapter Summary
Understanding the characteristic physical properties of metals, including lustre, hardness, malleability, ductility, sonority, and their high thermal and electrical conductivity.
Identifying the general physical properties of non-metals, such as being non-lustrous, brittle, and poor conductors of heat and electricity, and knowing their typical states at room temperature.
Identifying key exceptions to the general physical properties of metals and non-metals, such as mercury being a liquid metal, alkali metals being soft, iodine being lustrous, and graphite being a conductive non-metal.
Understanding how different metals react with oxygen to form metal oxides, and recognizing the varying reactivity of metals like sodium, magnesium, copper, and gold with air.
Differentiating between the nature of oxides formed by metals and non-metals. Metal oxides are typically basic or amphoteric, while non-metal oxides are acidic in nature.
Defining amphoteric oxides as metal oxides that exhibit both acidic and basic properties, and writing balanced chemical equations for their reactions with both acids and bases (e.g., Al₂O₃, ZnO).
Understanding the difference in reactivity of metals with oxygen, explaining why highly reactive metals like sodium are stored in kerosene, and how a passive oxide layer prevents further corrosion on metals like aluminium.
Explaining the process of anodising, where a thick, protective layer of aluminium oxide is formed on an aluminium article through electrolysis to enhance its resistance to corrosion and provide an attractive finish.
Practice Questions from this Chapter
Tap "Get Solution" on any question to ask our AI tutor.
- Explain why metals conduct electricity. Get Solution →
- Describe common uses of non-metals. Get Solution →
- Compare gold's malleability to iron's. Get Solution →
- What is the property of metals that describes their shining surface in a pure state? Get Solution →
- The ability of metals to be beaten into thin sheets is known as what? Get Solution →
- According to the text, which metal is the most ductile? Get Solution →
- Which of the following non-metals is a liquid at room temperature? Get Solution →
- Most non-metals produce which type of oxides when they dissolve in water? Get Solution →
Did you know?
- 💡 Pure gold is so soft you can actually dent it with your fingernail.
- 💡 Liquid mercury was once used in thermometers and even some old medicines.
- 💡 A diamond, made of carbon, will completely burn into gas if heated hot enough.
- 💡 Alkali metals like sodium are so light they can float on water.
- 💡 The human body contains many metals, including iron, zinc, and even trace amounts of gold.
Frequently Asked Questions
How many topics are covered in this chapter?
This chapter covers 8 key topics: Physical Properties of Metals, Physical Properties of Non-metals, Exceptions in Physical Properties, Reaction of Metals with Oxygen (Air), Nature of Metal and Non-metal Oxides, and more. The BrainWeave AI tutor explains each one with examples.
Is Chapter 3: Metals and Non-metals important for board exams?
Yes — Class 10 is a CBSE board exam year, and every NCERT chapter is part of the syllabus. Use BrainWeave's AI tutor to master this chapter, then practice with the auto-generated quizzes and mind maps.
Can I get NCERT solutions for this chapter in Hindi?
Yes. BrainWeave's AI tutor supports Hindi, English, and Hinglish for both voice and text chat. Just ask your question in your preferred language.
Is BrainWeave free for Class 10?
Yes. BrainWeave's free Spark plan gives generous daily messages — enough for regular homework. Premium features unlock when you bring your own free Google Gemini API key.
Can I use voice chat for this chapter?
Absolutely. Tap the mic, ask any question about Chapter 3: Metals and Non-metals, and the AI tutor will explain it back in voice and text.
How is BrainWeave better than static NCERT solutions sites?
Static solution sites give the same answer to everyone. BrainWeave adapts to your question — ask "explain like I'm 12" or "give a real-world example" and get a personalized response. Voice mode and Hindi support work seamlessly.
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