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Chapter 4 - Metals and Non-Metals : Brief of Complete Chapter, Class 8 Science Video Lecture

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FAQs on Chapter 4 - Metals and Non-Metals : Brief of Complete Chapter, Class 8 Science Video Lecture

1. What is the difference between metals and non-metals?

Ans. Metals are elements that are generally solid at room temperature, have a shiny appearance, are good conductors of heat and electricity, and have high melting and boiling points. Non-metals, on the other hand, can exist in various states (solid, liquid, or gas) at room temperature, have a dull appearance, are poor conductors of heat and electricity, and have low melting and boiling points.

2. Give examples of metals and non-metals.

Ans. Examples of metals include iron, copper, gold, silver, and aluminum. Examples of non-metals include carbon, oxygen, nitrogen, sulfur, and chlorine.

3. What are the physical properties of metals?

Ans. Metals have several physical properties, including high density, malleability (ability to be hammered into thin sheets), ductility (ability to be drawn into wires), high thermal and electrical conductivity, and a metallic luster.

4. What are the physical properties of non-metals?

Ans. Non-metals have several physical properties, including low density, brittleness (tendency to break or shatter when subjected to stress), low thermal and electrical conductivity, and a non-metallic luster (dull appearance).

5. What are the uses of metals and non-metals?

Ans. Metals have various uses, such as in construction (e.g., steel beams), electrical wiring (copper wires), and jewelry (gold and silver). Non-metals have uses in various industries, such as carbon in the form of graphite for making electrodes, oxygen for supporting combustion, and nitrogen for manufacturing fertilizers.

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Chapter 4 - Metals and Non-Metals : Brief of Complete Chapter, Class 8 Science for Class 82024 is part of Class 8 preparation. The notes and questions for Chapter 4 - Metals and Non-Metals : Brief of Complete Chapter, Class 8 Science have been prepared according to the Class 8 exam syllabus. Information about Chapter 4 - Metals and Non-Metals : Brief of Complete Chapter, Class 8 Science covers all important topics for Class 82024 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Chapter 4 - Metals and Non-Metals : Brief of Complete Chapter, Class 8 Science.

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