NCERT Solutions for Class 8 Science Chapter 14 - Free PDF Download
The Class 8 Science Chapter 14 Solutions are now made easy to understand all the concepts and topics related to the chapter precisely. You can now go through the concise explanations offered in these NCERT Solutions for Class 8 Science to get the utmost clarity on different concepts under the chapter Chemical Effects of Electric Current. Leave your worries of acing the exams and refer to these guides to understand difficult concepts of Chemical Effects of Electric Current with ease. Now, check the Class 8 Science Chapter 14 question answer PDF on the main website of Vedantu. Vedantu is a platform that provides free NCERT Solution and other study materials for students. Maths Students who are looking for better solutions, they can download Class 8 Maths NCERT Solutions to help you to revise complete syllabus and score more marks in your examinations.
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NCERT Solutions for Class 8 Science - Free PDF Download
Have you been struggling to find reliable study material for preparing for your upcoming exams? Vedantu has made it easier for you to grasp essential topics of Chemical Effects of Electric Current by offering free NCERT Solutions for Class 8 Chapter 14 in a PDF format that incorporates every topic and subtopic along with relevant question banks.
NCERT Solutions for Class 8 Science Chapter 14 - Chemical Effects of Electric Current
Introduction to Electric Currents
This NCERT Solutions Class 8 Science Chapter 14 guide comprises 5 sections. The first section involves the introduction of core insights into electric current and how it works. Students will also understand why touching any electrical appliance with wet hands can be harmful. Further, Chemical Effects of Electric Current also looks into helping students understand how electricity moves from their bodies and which are some of the good conductors by which electricity can move effortlessly.
Also, students will learn what is defined as a poor conductor, what might stop electricity from passing from these poor conductors, the mechanism of working, and much more. Students can make use of the Science Chapter 14 Class 8 PDF to learn everything they need to know about electricity and if or not they can make use of certain materials for passing electricity. Chapter 14 also offers a wide range of examples for students to get a clear understanding of the working of electricity. Lastly, a few other topics that you will learn about include- do liquids conduct electricity and which types of solid conduct electricity.
14.1 Do Liquids Conduct Electricity?
While the introduction of chapter 14 deals with helping students grasp what electricity is all about, this section helps you understand whether liquids conduct electricity or not. This section includes performing a wide range of activities to conclude if or not liquids are good conductors of electricity. Students are advised to be careful and take necessary precautions throughout performing these experiments to have a safe yet knowledgeable experience. Every activity in this section aims at helping students learn more about the laws of electricity.
The NCERT Class 8 Science Chapter 14 Question Answer guide further offers students some details on why they shouldn’t use their bare hands while performing different tests. Moreover, students will also learn about the dangerous effects of electricity and how it can harm us. You will also get insights into the heating effect while transferring electricity through a specific filament of a bulb or even a copper wire connected with nails. Another intriguing concept that you’ll learn in this section is what is a weak and strong current.
14.2 Chemical Effects of Electric Current
The NCERT Science Class 8 Chapter 14 PDF also gives brief insights into the third part of the chapter, Chemical Effects of Electric Current. Here, students will learn more about the core effects of electric current. The entire chapter is based on physical experiments and activities that students need to perform to learn about the different effects of electric current.
This section thus involves understanding more about different effects produced after a current is passed through distinguishing conducting solutions. Students are also advised to read through these activity sections meticulously to learn how electricity produces certain effects and how students should secure themselves from getting shocks while performing these activities.
Moreover, you will gain more information about William Nicholson, a British chemist that performed several activities for analyzing different situations of electrodes when passed through water.
In the NCERT Solutions of Class 8 Science Chapter 14 guide, students will also learn about electrodes and some of their fundamental chemical effects. Additionally, there is an entire section based on electroplating. Students will be introduced to a completely new concept that deals with what happens when you pass electricity through a copper sulphate solution and how copper sulphate is dissociated from sulphate and copper, along with its brief mechanism.
You will further learn about different uses of electroplating in real life and its applications. The Class 8 Science Chapter 14 Solutions guide offers concise questions on this section to help students prepare well for exams.
On thoroughly revising this chapter and performing distinguishing activities, you will have to go through the questionnaires on the same. You are asked to solve about 12 questions in this respective exercise. All these questions are entirely based on the above-mentioned 4 core topics and will test your understanding of the Chemical Effects of Electric Current. The questions may be a bit tricky to understand. Thus, students are asked to read each question twice before answering it.
Key Features of Ncert Solutions for Class 8 Chapter 14
Given below are a few of the prime features of NCERT solutions for class 8 Chemical Effects of Electric Current.
Get precise knowledge of the different effects of electric current.
Understand different precautionary measures to take while performing activities that involve passing electricity through an object.
Learn more about the three topics that this chapter covers in-depth.
FAQs (Frequently Asked Questions)
1. What does this Chapter Summarise Students About?
In this chapter, students will learn that specific liquids are excellent conductors of electricity while some aren’t. Additionally, most liquids that do conduct electricity are mixtures of acids, bases, and salts. Along with this, you will understand that the path of an electric current through conducting liquid produces chemical effects. Lastly, you’ll learn about electroplating- it is the methodology of depositing a layer of any respective metal on another object through electricity.
2. How is Vedantu Advantageous for Preparing for Your Exams?
Vedantu is a leading website that offers students key insights on how they can prepare for their exams. Now get premium access to Class 8 Science NCERT Chapter 14 free of cost and gain knowledge on electricity and different concepts of electricity. The study material offered by Vedantu will help students create a strong foundation for their academics, thereby helping them learn how they can use knowledge about what they’ve learned so far correctly. Additionally, students will also learn distinguishing skills to get clarity on concepts like electroplating.
3. What are the three chemical effects of electric current?
Chemical effects of electric current include permanent changes that cannot be reversed. Upon passing current through a solution, gases may be evolved at electrodes. Deposits of metal may also be seen along with a change in the colour of the solution. These are the three main chemical effects of electric current. You can refer to Vedantu Class 8 NCERT Chapter 14 Solutions to get more clarity on the topic.
4. What is the chemical effect of electricity? Give some examples of chemical effects?
Chemical effects of electricity are seen when an electric current is passed through a conducting liquid solution. The changes seen are permanent and irreversible. Gas evolution at anodes and cathodes, visual changes like a shift in the colour of the solution and deposition of metal are also seen. These are all examples of the various chemical effects of electricity.
5. What is Electroplating?
Electroplating is one of the real-time applications of the chemical effects of electricity. It is a process in which a layer of a desirable metal is deposited atop another material. The deposited metal generally has some attributes that the original metal lacks and could benefit from. For example, chromium plating is done on many household objects such as bath taps and kitchen gas burners. This is simply because chromium does not corrode and resists scratches.
6. Why is iron coated with zinc?
The process of coating iron with a layer of zinc is termed galvanization. Iron is used for construction purposes because it is a very sturdy and strong metal. However, iron tends to corrode and rusts on exposure to air and moisture due to the formation of hydrated ferric oxide. This is why a coating of zinc is deposited on iron to protect it from corrosion and inhibit the formation of rust.
7. What are good and bad conductors?
Some materials allow for the passage of electricity quite easily while other materials resist its flow. It is recommended to classify materials as good conductors and poor conductors instead of classifying them as insulators and conductors as most materials can conduct under certain conditions. Check out Vedantu's Class 8 Science Chapter 14 Solutions to download NCERT solutions for free of cost from the Vedantu website. You can also download the Vedantu app to access these solutions for free.