Selina Class 7 Chemistry Solutions Chapter-6 Metals and Non-metals
Learning the properties of different substances becomes interesting with Selina Class 7 Chemistry Solutions for Chapter-6 Metals and Non-metals. This chapter explains the physical and chemical characteristics of metals and non-metals using simple examples from daily life. Students studying through Selina Solutions for ICSE board can clearly understand how metals differ from non-metals in appearance, hardness, conductivity, and uses. The chapter is designed to improve conceptual understanding and help students answer textbook questions with accuracy in school examinations.
Find the Exercise-wise PDF of Selina Class 7 Chemistry Solutions chapter-6 Metals and Non-metals
Introduction to Metals and Non-metals
Chapter-6 introduces students to the classification of elements into metals and non-metals. The chapter begins by explaining the common properties of metals such as lustre, hardness, malleability, ductility, and conductivity of heat and electricity. Metals like iron, copper, aluminium, silver, and gold are discussed with practical examples.
The chapter also explains non-metals and their characteristics. Students learn that non-metals are generally dull, brittle, and poor conductors of heat and electricity. Examples such as sulphur, carbon, oxygen, and phosphorus help students identify different non-metallic substances.
The topic becomes easier to understand because the properties are connected with real-life applications. Students can relate metals to utensils, electric wires, machinery, and jewellery, while non-metals are linked to air, fuels, and fertilizers.
Important Concepts Covered in the Chapter
One of the major concepts in this chapter is the comparison between metals and non-metals. Students learn the differences based on physical appearance, conductivity, strength, and uses. These comparisons are important because they are commonly asked in exams as short-answer and table-based questions.
The chapter also introduces special properties like malleability and ductility. Malleability explains the ability of metals to be beaten into thin sheets, while ductility refers to drawing metals into wires. Copper and aluminium are discussed as examples used in electrical wiring because of their excellent conductivity. Another important section explains exceptions to general properties. For example, graphite is a non-metal that can conduct electricity, and sodium is a soft metal that can be cut with a knife. Understanding these exceptions helps students build stronger concepts and avoid confusion during exams.
Uses of Metals and Non-metals
The chapter explains how the properties of metals and non-metals decide their uses. Metals are used in construction, transport, electrical appliances, and cooking utensils because they are strong and conduct heat and electricity efficiently. Gold and silver are used in jewellery because of their shine and resistance to corrosion.
Non-metals also play an important role in daily life. Oxygen is essential for breathing, nitrogen is used in fertilizers, and chlorine helps in water purification. Carbon is used as fuel and graphite is used in pencils. These examples help students connect chemistry with practical applications.
Importance of Chapter-6 for ICSE Students
Metals and Non-metals is one of the most scoring chapters in Class 7 Chemistry because the concepts are direct and easy to understand with proper revision. Students who prepare definitions, properties, and uses carefully can answer most textbook questions correctly.
The exercise solutions help students write scientific answers in a proper format. They also improve understanding of difficult terms and teach the correct way to compare properties. Practice of exercise questions increases confidence and helps students perform better in class tests and annual exams.
This chapter also builds the base for future chemistry topics like acids, bases, reactions, and periodic classification of elements taught in higher classes.
Important Topics to Revise
Students should focus more on the following concepts while preparing this chapter:
- Physical properties of metals
- Physical properties of non-metals
- Difference between metals and non-metals
- Conductors and insulators
- Malleability and ductility
- Uses of common metals
- Uses of important non-metals
- Exceptions in metallic and non-metallic properties
Careful revision of these topics helps students answer objective and descriptive questions effectively.
FAQs on Selina Class 7 Chemistry Solutions Chapter-6 Metals and Non-metals
This chapter helps students understand the basic classification of elements based on their properties. It explains why metals are used in electrical wires, utensils, and machinery, while non-metals are used in fertilizers and fuels. The concepts introduced in this chapter form the foundation for advanced chemistry topics in higher classes. Students also learn important scientific terms like malleability and ductility, which are frequently asked in school examinations and practical discussions.
Students can remember the properties by connecting them with daily-life examples. Metals are shiny, strong, and conduct heat and electricity, so examples like copper wires and steel utensils are easy to recall. Non-metals are generally dull and brittle, which can be remembered using examples like coal and sulphur. Making comparison tables and revising important differences regularly also helps students remember the concepts clearly for exams and classroom activities.
Selina solutions provide step-by-step explanations of textbook questions in simple language suitable for ICSE students. They help students understand definitions, differences, and uses of metals and non-metals with proper examples. The solutions also guide students on writing answers in an accurate and exam-oriented format. Regular practice of solved exercises improves conceptual clarity, strengthens revision, and helps students answer both short and long questions confidently during examinations.