Question

1.State any four differences between physical properties of metals and non metals.

2.Explain corrosion of copper by writing chemical equation.

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Answer 1

Answer:

Metals are sonorous while non metals are not sonorous.metals are lustrous while non metals are not lustrous. Metals conduct electricity while non metals not. metals are electropositivemeans they donate electrons while non metals not.

Answer 2

Answer:

1. Metals and Nonmetals are different types of materials present around us. Elements can be divided into metals and nonmetals and it is important to know whether a particular element is a metal or nonmetal. Metals (like copper and aluminium) are good conductors of heat and electricity, while nonmetals (such as phosphorus and sulfur) are insulators. Materials are distinguished as above, based on their properties.

2. When copper or silver combines with oxygen, the process is known as corrosion or oxidation. When copper reacts with oxygen, then it produces copper oxide. The chemical equation of this reaction is 4Cu + O2 = 2Cu2O, and forms Copper Oxide.

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Explanation: