Class 10 Science - MP
Metals and Non-metals
The chapter 'Metals and Non-metals' in Class 10 Science explores the physical and chemical properties of elements, dividing them based on their characteristics. Students learn about the reactivity series, ionic bonding, the formation of ores, and the extraction of metals through metallurgy. It also covers the prevention of corrosion and the properties of alloys. This chapter holds significant weightage in the MPBSE board exams, frequently featuring direct conceptual questions, chemical equations, and reasoning-based problems that test a student's understanding of periodic trends and chemical reactivity.
Start Learning FreeKey Concepts
Physical Properties
Metals are generally solid, malleable, ductile, lustrous, and good conductors of heat and electricity, whereas non-metals lack these properties and are often brittle.
Chemical Properties of Metals
Metals react with oxygen to form basic oxides, with water to form metal oxides or hydroxides and hydrogen gas, and with dilute acids to produce salts and hydrogen gas.
Reactivity Series
A list of metals arranged in order of decreasing reactivity, which helps determine whether a more reactive metal can displace a less reactive metal from its salt solution.
Ionic Compounds
Compounds formed by the complete transfer of valence electrons from a metal to a non-metal, resulting in high melting and boiling points and good conductivity in molten or aqueous states.
Metallurgy and Corrosion
The extraction of pure metals from their ores involves concentration, reduction, and refining, while corrosion is the degradation of metals due to moisture and air, preventable by galvanizing or alloying.
Important Formulas
Board Exam Info
In the Madhya Pradesh (MPBSE) Class 10 Science board examination, this chapter typically carries around 5 to 7 marks. Questions commonly include 1-mark objective questions, 2-mark reasoning questions (such as why certain metals do not displace hydrogen from acids), and 3 to 4-mark descriptive questions involving the reactivity series, electrolytic refining, or chemical equations.
Frequently Asked Questions
Ionic compounds have high melting and boiling points because of the strong electrostatic force of attraction between oppositely charged ions, which requires a large amount of energy to break.
Ionic compounds have high melting and boiling points because of the strong electrostatic force of attraction between oppositely charged ions, which requires a large amount of energy to break.
What is an amphoteric oxide? Give an example.
Amphoteric oxides are metal oxides that show both acidic and basic behavior by reacting with both acids and bases to form salt and water. Examples include Aluminum Oxide (Al2O3) and Zinc Oxide (ZnO).
Why is sodium kept immersed in kerosene oil?
Sodium is an extremely reactive metal that reacts vigorously with oxygen and moisture in the air, catching fire easily. Kerosene prevents its contact with air and moisture.
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