NCERT Solutions for Class 10 Science Chapter 3 Metals and Non-metals

 

NCERT Solutions for Class 10 Science Chapter 3 - Metals and Non-metals: Chapter 3 of Class 10 Science, will tell you about elements which can be classified as metals and non-metals. Metals are lustrous, malleable, ductile and are good conductors of heat and electricity. They are solids at room temperature, except mercury which is a liquid. Metals can form positive ions by losing electrons to non-metals. Metals combine with oxygen to form basic oxides. Aluminum oxide and zinc oxide show the properties of both basic as well as acidic oxides. These oxides are known as amphoteric oxides. Different metals have different reactivities with water and dilute acids.

You will study that a list of common metals arranged in order of their decreasing reactivity is known as an activity series. Metals above hydrogen in the Activity series can displace hydrogen from dilute acids. A more reactive metal displaces a less reactive metal from its salt solution. Metals occur in nature as free elements or in the form of their compounds. The extraction of metals from their ores and then refining them for use is known as metallurgy. An alloy is a homogeneous mixture of two or more metals, or a metal and a non-metal.

Here are the important topics of NCERT Solutions for Class 10 Science Chapter 3 - Metals and Non-metals mentioned below:

3.1 Physical Properties

    3.1.1 Metals

    3.1.2 Non-Metals

3.2 Chemical properties of Metals

    3.2.1 What happens when Metals are Burnt in Air?

    3.2.2 What happens when Metals react with Air?

    3.2.3 What happens when Metals react with Acids?

    3.2.4 How do Metals react with Solutions of other Metal Salts?

    3.2.5 The Reactivity Series

3.3 How Do Metals and Non-Metals React?

    3.3.1 Properties of Ionic Compounds

3.4 Occurrence of Metals

    3.4.1 Extraction of Metals

    3.4.2 Enrichments of Ores

    3.4.3 Extracting Metals Low in the Activity Series

    3.4.4 Extracting Metals in the Middle of the Activity Series

    3.4.5 Extracting Metals Towards the Top of the Activity Series

    3.4.6 Refining of Metals

3.5 Corrosion

    3.5.1 Prevention of Corrosion

In NCERT Class 10 Science Chapter 3 - Metals and Non-metals, will also tell you that the surface of some metals, such as iron, is corroded when they are exposed to moist air for a long period of time. This phenomenon is known as corrosion. Non-metals have properties opposite to that of metals. They are neither malleable nor ductile. They are bad conductors of heat and electricity, except for graphite, which conducts electricity.

Non-metals form negatively charged ions by gaining electrons when reacting with metals. They form oxides which are either acidic or neutral. They do not displace hydrogen from dilute acids. They react with hydrogen to form hydrides.

Q1. In the electrolytic refining of a metal M, what would you take as the anode, the cathode and the electrolyte?

Q2. Pratyush took sulphur powder on a spatula and heated it. He collected the gas evolved by inverting a test tube over it, as shown in the figure below:

  • (a) What will be the action of gas on
    • (i) dry litmus paper?
    • (ii) moist litmus paper?
  • (b) Write a balanced chemical equation for the reaction taking place.

Q3. Give reasons why copper is used to making hot water tanks and not steel (an alloy of iron).

If you have any doubt in getting the answer to these questions then don't worry, NCERT Solutions for Class 10 Science Chapter 3 - Metals and Non-metals is there for you to help.

NCERT Solutions for Class 10 Science Chapter 3 Metals and Non-metals - Solutions

 

NCERT Solutions for Class 10 Science - Chapter wise

Chapter No.

Chapter Name

Chapter 1

Chemical Reactions and Equations

Chapter 2

Acids, Bases, and Salts

Chapter 4

Carbon and Its Compounds

Chapter 5

Periodic Classification of Elements

Chapter 6

Life Processes

Chapter 7

Control and Coordination

Chapter 8

How do Organisms Reproduce?

Chapter 9

Heredity and Evolution

Chapter 10

Light Reflection and Refraction

Chapter 11

The Human Eye and The Colorful World

Chapter 12

Electricity

Chapter 13

Magnetic Effects of Electric Current

Chapter 14

Sources of Energy

Chapter 15

Our Environment

Chapter 16

Sustainable Management of Natural Resources

 

NCERT Solutions for Class 10 - Subject Wise

NCERT Solutions for Class 10 Maths

NCERT Solutions for Class 10 Science

 

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