NCERT Solutions for class 10 Science helps students in learning science concepts in detail, boosting confidence, and attempting the board as well as entrance exam smartly. NCERT Solutions for class 10 Science, provides answers to all the questions printed at the end of every chapter as well as the questions included within a chapter. These solutions are prepared by our subject experts who are highly experienced in the education industry. The solutions created are genuine and can be referred by the students to prepare for their science exam. The descriptive language is straightforward and easy to understand. The concepts are explained with steps, diagrams, tips to remember, shortcuts for numerical problems and tricks to remember chemical reactions and formulae.
Access Answers of Science NCERT class 10 Chapter 3 – Metals and Non-metals
|NCERT Exemplar Solutions for class 10 Science Chapter 3|
|CBSE Notes for Class 10 Science Chapter 3|
NCERT Solutions for class 10 Science Chapter 3 – Metals and Non-metals
Average Number of questions from this chapter being asked is seven where five are subjective or MCQ plus two practical-based questions. In the year 2017, only one mark question was asked from this chapter whereas in the year 2018 the weightage was 5+2* = 7.
List of Section questions with type
|Section number||Section name||Questions||Question type|
|Section 3.1.2||Non-metals||2||1 very short answer, 1 short answer|
|Section 3.2.5||The Reactivity Series||5||3 long answer, 2 short answer|
|Section 3.3.1||Properties of Ionic compounds||2||2 short answer|
|Section 3.4.6||Refining of Metals||3||2very short answer, 1 short answer|
|Section 3.5.1||Prevention of Corrosion||3||3 short answer|
List of Exercise questions with type
This chapter consists of 16 questions and is divided into the following types –
|Multiple choice questions (MCQ)||4|
|Short answer (SA)||5|
|Long answer (LA)||6|
|Very long answer (VLA)||1|
NCERT Solutions for class 10 Science Chapter 3- Metals and Non-metals
Elements can be categorised into two types viz, non-metals and metals. Excluding mercury, all metals are solid at room temperature. Some other important properties of metals include
- They are malleable,
- Good conductors of electricity and heat.
- They lose their electrons to form positively charged ions.
- They form basic oxides by combining with oxygen.
What are amphoteric oxides?
Oxides which show basic and acidic properties are called amphoteric oxide. Example, zinc oxide and aluminium oxide.
What is metallurgy?
The process of extracting metal from ore and refining it is called metallurgy.
What is corrosion?
Corrosion is a phenomenon where a metal like iron is exposed to moistened air for a long period of time.
What are non-metals?
Non-metals are not ductile and malleable. Excluding graphite, all non-metals are bad conductors of electricity and heat. They gain electrons to form negative ions when they react with metals. Non-metals form hydrides by reacting with hydrogen. They can form oxides which are either neutral or acidic.
Key Features of NCERT Solutions for class 10 Science Chapter 3 – Metals and Non-metals
- The information provided in these NCERT solutions for class 10 Science Chapter 3 – Metals and Non-metals is authentic and easy to understand.
- These solutions provide answers to all the exercise questions present at the end of chapter 3 metals and non-metals from NCERT class 10 science textbook.
- The solutions to questions asked in between the chapter have also been provided.
- NCERT solutions for class 10 Science Chapter 3 – Metals and Non-metals are provided by BYJU’S subject experts only after expansive research.
- These solutions will be useful for various competitive exams such as JEE, NEET, etc.
- Students can rely on these solutions to prepare for their board exam as it consists of tips, shortcuts, step by step procedure and neat labelled diagrams to tackle the complex type of questions smartly.
To get NCERT Class 10 chapter wise solutions for other subjects, you can check out NCERT Solutions for Class 10.
Frequently Asked Questions on Metals and Non Metals
Why is sodium kept immersed in kerosene oil ?
Sodium is a reactive metals, if kept open it will react with oxygen to explore and catch fire. Sodium metal is kept immersed in kerosene to prevent their reaction with oxygen, moisture and carbon dioxide of air.
Why do ionic compounds have high melting points ?
Ionic compounds are the ones which has both positive and negative charges. Hence there will be strong force of attraction between them. This make expenditure of lot of heat to break this force of attraction hence ionic compounds have high melting points.
Name two metals which are found in nature in the free state
Gold and platinum are the two metals found in Free State in nature.
What are alloys ?
An alloy is a homogeneous mixture of two or more metals, or a metal and a non-metal.
What type of oxides are formed when non-metals combine with oxygen ?
When non-metals combine with oxygen it forms either acidic or neutral oxides. Ex: N2O5 or N2O3 is an acidic oxide; CO is a neutral oxide.
Give reasons why copper is used to make hot water tanks and not steel (an alloy of iron) ?
Copper is used to make hot water tanks and not steel (an alloy of iron) because copper does not reacts with either water or steam whereas iron reacts with steams to corrode the tank.