Science
Metals and Non-metals
धातु और अधातु
In Class 10 Science, the chapter Metals and Non-metals examines the physical and chemical properties that distinguish these materials. Students compare their reactions with oxygen, water and acids, and use the reactivity series to understand displacement reactions. The chapter also introduces ionic compounds, explains why metals and non-metals form ions, and covers basic ideas of corrosion, its prevention, and metal extraction.
1Physical and chemical properties
भौतिक और रासायनिक गुणधर्म
In this Class 10 Science topic from the chapter Metals and Non-metals, students learn how to distinguish physical properties from chemical properties and compare metals with non-metals. The topic covers lustre, hardness, malleability, ductility, sonority, conductivity, and melting points, along with chemical reactions involving oxygen, water, acids, and salts. Students also understand reactivity, the formation of ionic compounds, and how these properties explain the uses and behaviour of common elements.
5 questionsReactivity series
धातुओं की क्रियाशीलता श्रेणी
In this Class 10 Science topic from the chapter Metals and Non-metals, students learn how metals are arranged in the reactivity series according to their tendency to lose electrons and form compounds. They compare the reactions of metals with water, acids and oxygen, and use the series to predict displacement reactions, such as when a more reactive metal displaces a less reactive metal from its salt solution. The topic also connects reactivity with metal extraction and everyday observations.
20 questionsIonic compounds
आयनिक यौगिक
In Class 10 Science, under Metals and Non-metals, students learn how ionic compounds form when metal atoms transfer electrons to non-metal atoms. This creates positively charged cations and negatively charged anions, held together by strong electrostatic attraction in a crystal lattice. Using examples such as sodium chloride and magnesium oxide, the topic explains charge balance in chemical formulas and key properties of ionic compounds, including their high melting points, hardness, brittleness, solubility in water, and ability to conduct electricity when molten or dissolved.
0 questionsCorrosion and extraction basics
संक्षारण और धातु निष्कर्षण की मूल बातें
In this Class 10 Science topic from Metals and Non-metals, students learn how corrosion gradually damages metals through reactions with air, moisture, or other environmental factors. They explore everyday examples such as rusting, identify conditions that speed up corrosion, and understand prevention methods including painting, oiling, galvanising, alloying, and electroplating. The topic also introduces how useful metals are obtained from ores through concentration, conversion to oxides, reduction, and refining, with extraction methods linked to the metal’s reactivity.
6 questions