NCERT Exemplar Class 10 Science Chapter 3 – Metals and Non-Metals
The NCERT Exemplar Class 10 Science Solutions for Chapter 3 – Metals and Non-Metals help students explore the fascinating world of elements and their classification based on physical and chemical properties. This chapter provides a detailed understanding of the characteristics, occurrence, reactivity, and applications of metals and non-metals. With the support of NCERT Solutions for Class 10 Science, learners can strengthen their conceptual base and gain exam-oriented knowledge.
The chapter begins with the discussion of the physical properties of metals, such as malleability, ductility, electrical conductivity, and luster, and contrasts them with the properties of non-metals, like brittleness and poor conductivity. It then moves on to the chemical properties, including reactions of metals with oxygen, water, acids, and other salts. Students also learn how non-metals exhibit different reactivity patterns compared to metals. A major highlight of this chapter is the reactivity series, which arranges metals based on their tendency to lose electrons. This concept helps in predicting the outcomes of various reactions. The chapter also explains processes like corrosion, with rusting of iron as a prime example, and preventive measures such as galvanization, painting, and alloying. By solving NCERT Exemplar Class 10 Science exercises, students can understand these applications in depth and apply them in real-life scenarios. Another important section deals with the extraction of metals from their ores. The chapter describes processes like concentration of ores, roasting, calcination, and refining. Real-world examples, such as the extraction of aluminium and iron, make the topic more engaging. Non-metals and their compounds, such as hydrogen, chlorine, nitrogen, and sulphur, are also discussed in detail with their uses in industries and daily life. This chapter ensures that learners understand not just the theoretical concepts but also their practical relevance, such as the use of alloys, the significance of metals in infrastructure, and the role of non-metals in biological and environmental systems. The NCERT Solutions for Class 10 Science Chapter 3, along with exemplar questions, prepare students for board exams and competitive entrance tests by enhancing both conceptual clarity and problem-solving ability.