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Chemical Properties of Metals Video Lecture | Science Class 10
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FAQs on Chemical Properties of Metals Video Lecture - Science Class 10
| 1. What are the chemical properties of metals? |  |
Ans. The chemical properties of metals include their ability to react with oxygen to form metal oxides, their tendency to lose electrons and form positive ions, their reaction with acids to produce hydrogen gas, their ability to displace less reactive metals from their compounds, and their ability to conduct heat and electricity.
| 2. How do metals react with oxygen? | |
Ans. Metals react with oxygen to form metal oxides through a process called oxidation. This reaction is commonly known as corrosion. For example, iron reacts with oxygen in the presence of moisture to form iron oxide, commonly known as rust.
| 3. What happens when metals react with acids? | |
Ans. When metals react with acids, they undergo a displacement reaction and release hydrogen gas. The metal displaces hydrogen from the acid, resulting in the formation of a metal salt and hydrogen gas. For example, when zinc reacts with hydrochloric acid, zinc chloride is formed along with the liberation of hydrogen gas.
| 4. How do metals conduct heat and electricity? | |
Ans. Metals conduct heat and electricity due to the presence of free electrons within their atomic structure. These free electrons are delocalized and can move freely throughout the metal lattice. When heat or an electric current is applied to a metal, these free electrons carry the energy from one point to another, resulting in the conduction of heat or electricity.
| 5. Can metals displace other metals from their compounds? | |
Ans. Yes, metals can displace less reactive metals from their compounds through a process called displacement reaction. This is because metals have different reactivity levels, and a more reactive metal can displace a less reactive metal from its compound. For example, zinc can displace copper from its sulfate solution, resulting in the formation of zinc sulfate and the deposition of copper metal.
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Dec 22, 2024 Last updated |
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