Solutions of Metals And Non-metals from 1 Explore: A Science Textbook 8
Shobhita Johari Science Solutions from Chapter 4 - Metals and Non-Metals
Shobhita Johari, Pankaj Tyagi and, Parminder Chopra's 1 Explore: A Science Textbook 8 detailed solutions to all the exercises of Metals And Non-metals for 8th CBSE are provided here. The topics covered are such as Introduction, Alloy and, Uses Of Metals. The points to remember in the Shobhita Johari, Pankaj Tyagi and, Parminder Chopra's Book Solutions is ideal for quick revision.
Practice Other Topics from Metals and Non-Metals
This topic provides an introduction to metals and non-metals by highlighting their characteristics. It discusses their several uses, like making tools, machines, automobiles, ships, houses, etc. It also talks about their history and progression.
The topic focuses on the occurrence of metals in nature. We will know about the sources of metals. The relation between metals, minerals and ores are mentioned. We will understand the terms minerals, ores, and metallurgy.
This topic covers the physical properties of metals and non-metals. The properties highlight physical state, lustre, and malleability and ductility. The properties also feature hardness and strength, conductivity, melting and boiling point, etc.
This topic discusses the chemical properties of metals and non-metals. The chemical properties are based on the reactivity series like reaction with oxygen, water, dilute acids, and bases. Displacement reaction is also explained.
The topic elaborates on the uses of different metals. Several uses of iron, copper, aluminium, and zinc are discussed. We learn that iron is the most useful of metals because of its physical and chemical properties.
The topic provides knowledge about noble metals and why they are called so. Furthermore, the characteristics which make them different from other metals are given. We will also learn why these metals play an important role in Indian economy.
The topic discusses the corrosion of metals. It informs that some metals react in the presence of moisture. It defines corrosion and rusting and how that takes place. Some examples, along with their reactivity, are discussed.
The topic discusses the methods to prevent corrosion. Some methods including barrier protection, sacrificial protection, alloying, electroplating, galvanising, and anodising are explained using suitable illustrations.
This topic describes alloy and its properties with examples. It briefs us on how alloys are usually prepared and obtaining the desired characteristics of pure metals. A table is shown with constituents, properties, and uses of some alloys.
The topic is a recapitulation of the whole chapter. All the essential points in the entire section are collated at the end for revision purposes. Students can go through these points to review whatever they have learnt in this part.
This topic highlights all the relevant definitions discussed so far in the chapter. Students can understand these one-line definitions and memorise them for better knowledge. There are some nine definitions given for revision.
