Important Questions for Class 10 Science Chapter 3 Metals and Non-metals - PDF Download

The important questions in CBSE Class 10 Science Chapter 3 - Metals and Non-metals have been designed by our expert teachers in a manner that will allow students to explore the different kinds of problems that can be looked into based on the topics in Chapter 3. You will get good practice before your exams and will be able to solve most of the problems related to the chapter. The questions and their answers are easy to understand and remember. These questions will most likely be asked in your Class 10 Science exam since they follow the strict CBSE guidelines and are aligned with the Class 10 Science syllabus.

This website discusses the third chapter of science, metals, and metals. This chapter discusses different types of metals, and non-metals, their differences, reactions with other elements, symbols, and position on the periodic table. Important questions for class 10 science chapter 3 metals and non-metals will easily get through the examination.

eSaral is a platform that provides free CBSE Solutions (NCERT) and other study materials for students. You can download Class 10 Science and  Class 10 Maths NCERT Solutions to help you revise the complete syllabus and score more marks in board examinations.

Important Topics & Sub-topics of  Metals and Non-metals Class 10 Science

Certainly, let's delve into more detail on the important topics and sub-topics related to Metals and Non-metals in Class 10 Science:

Metals:

1. Physical Properties of Metals: 

• Luster:  Metals are generally shiny and reflective due to their ability to reflect light.

• Malleability:  Metals can be hammered into thin sheets without breaking.

•  Ductility:  Metals can be drawn into thin wires without breaking.

• Conductivity (thermal and electrical):  Metals are good conductors of heat and electricity.

• Density:  Metals are typically dense compared to non-metals.

2. Chemical Properties of Metals: 

• Reactivity with Acids:  Many metals react with acids to produce hydrogen gas and a metal salt.

• Reactivity with Water:  Some metals react with water to form metal oxides and hydrogen gas.

• Reaction with Oxygen:  Metals react with oxygen to form metal oxides.

3. Corrosion and Prevention: 

• Rusting of Iron:  Iron corrodes in the presence of moisture and oxygen, forming rust.

• Methods to Prevent Corrosion:  Coating with paint, oiling, galvanization (coating with zinc), and alloy formation.

4. Alloys: 

• Definition and Examples:  Alloys are homogeneous mixtures of two or more elements, with at least one being a metal. Examples include steel (iron and carbon), brass (copper and zinc), and bronze (copper and tin).

Non-metals:

Physical Properties of Non-metals

• Lack of Luster:  Non-metals do not have the characteristic metallic shine.

• Brittle:  Non-metals are typically brittle and break into powdery masses when hammered.

• Non-conductors of Electricity:  Most non-metals are poor conductors of electricity and heat.

• Varied Density:  Non-metals exhibit a wide range of densities.

 2. Chemical Properties of Non-metals

•  Reactivity with Acids:  Some non-metals react with acids to produce salts and release hydrogen gas.

 3. Hydrogen

• Occurrence and Properties:  Hydrogen is the lightest element. It is the most abundant element in the universe and is a colorless, odorless gas.

• Uses:  Hydrogen is used in the production of ammonia, hydrogenation of oils, and fuel cells.

 4. Carbon and its Forms

•  Allotropes of Carbon:  Diamond (hard and transparent), Graphite (conductive and slippery), Fullerene (a molecule composed entirely of carbon).

 5. Nitrogen and its Compounds

• Occurrence:  Nitrogen is a diatomic gas and makes up a significant portion of the Earth's atmosphere.

• Properties of Nitrogen Gas:  Inert and does not support combustion.

• Ammonia and Nitric Acid:  Ammonia (NH₃) is a compound of nitrogen, and nitric acid (HNO₃) is formed through the oxidation of nitrogen.

 6. Oxygen and its Compounds

• Properties of Oxygen Gas:  Supports combustion and is essential for respiration.

• Water and Oxides:  Oxygen combines with hydrogen to form water, and with various elements to form oxides.

These detailed sub-topics cover the essential concepts within the Metals and Non-metals chapter in Class 10 Science.

Tips to Solve Class 10 Science Chapter 3 Metals and Non-metals

Understand Properties:  Familiarize yourself with the properties of metals and non-metals. This includes characteristics like conductivity, malleability, and appearance.

Mnemonic Devices:  Use mnemonic devices to remember lists or sequences. For example, "Silly Monkeys Love Bananas" can help recall the reactivity series of metals.

Visual Aids:  Create diagrams or charts to visualize concepts. This can make it easier to remember and understand the relationships between different elements.

Practice with Examples:  Solve plenty of examples and exercises from your textbook. This reinforces your understanding and helps in remembering key concepts.

Periodic Table:  Understand the arrangement of elements on the periodic table. This provides insights into the properties and behavior of different elements.

Real-life Examples:  Relate concepts to everyday life examples. This makes learning more relatable and helps in retaining information.

Group Study:  Discussing topics with classmates can offer different perspectives and insights. Teaching others can also reinforce your understanding.

Use Online Resources:  Explore online resources, videos, and animations that explain concepts visually. Sometimes, a different presentation style can make a big difference.

Mind Maps:  Create mind maps to organize information. This visual tool can help you see the connections between different concepts.

Regular Revision:  Regularly revise the material to reinforce what you've learned. This is crucial for long-term retention.

Remember, understanding the underlying concepts is key. If you encounter difficulties, don't hesitate to seek help from your teacher or classmates.

Benefits of Solving Class 10 Science Chapter 3 Important Questions with Answers

Class 10 Science Metals and Non-metals important questions will help you prepare for your final exams and are beneficial for the following reasons.

The metals and non-metals important questions will help candidates practice the chapter instantly while revising it. These solutions are the best last-minute revision set before the exams. 

The important question set consists of all the necessary topics given in Chapter 3 Metal and Nonmetals that the students must know. It is the best example of a group of questions that will give the students an idea about the board exam. 

Extra questions for class 10 Science Chapter 3 are available for free at the eSaral website, helping the students gain confidence before sitting for their finals. 

Conclusion

Class 10 Science Chapter 3 Metal and Non-metals crucial questions are intended for students who are preparing to take competitive examinations or who are going to take their board exams. Science is a difficult subject that requires a lot of hard study and review. The expert team's preparation of these class 10 science ch 3 crucial questions will assist students in covering all areas and becoming confident before examinations.

FAQs on Important Questions for CBSE Class 10 Science Chapter 3 - Metals and Non-metals 2023-24

Question 1: What are Metals? What are its Properties?

Answer: Metals are opaque, lustrous elements and good conductors of heat and electricity. Most metals are malleable and ductile and are, in general, denser than the other elemental substances in the periodic table.

The Physical and Chemical Properties of Metals are as follows:  

Some of the physical properties of metals are listed below.

• Shiny (lustrous) in nature

• Metal are good conductor of electricity and heat

• Density and melting point are high

• Mouldable (Malleable)

• Ductile

• At room temperature, metals are in solid form except for mercury

• Opaque

Some of the chemical properties of metals are listed below.

• Easily corrodible

• Can lose electrons

• Form basic oxides

• Have low electronegativities

• Good reducing agents

Question 2: What are Non-metals? What are its properties?

Answer: Non-metal is a chemical element that does not have metal properties such as conductivity and many more. These substances occur in liquid or gaseous states. There are very few non-metals in the environment and all of them are present in the periodic table. 

The physical and chemical properties of Non-Metals are as follows: 

Some of the physical properties of non-metals are given below.

• Poor conductors of electricity and heat

• Non-Ductile metals

• Brittle solids

• Maybe solids, liquids, or gases at room temperature

• These are not sonorous

• Transparent

Some of the chemical properties of non-metals are given below.

• The number of electrons in the outer shell is generally 4-8

• Easily gain or lose valence electrons

• Form acidic oxides whenever they come in contact with oxygen

• High electronegative elements

• Great oxidizing agents