Class 8 Science Chapter 14 | Chemical Effects of Electric Current Full Chapter Explanation

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00:00 Chemical Effects Of Current Introduction: Full Chapter Explanation 01:20 Introduction Of Chemical Effects Of Current Introduction 23:03 Do Liquids Conduct Electricity 01:14:10 Important Terms- Electrolyte, Electrodes And Electrolytic Cell 01:50:08 Detection Of Weak Current Flowing Through A Liquid 03:03:59 The Case Of Distilled Water, Tap Water, Sea Water And Rain Water 03:50:25 Chemical Effects Of Electric Current 04:34:04 Applications Of Chemical Effects Of Electric Current 04:40:33 Electroplating 05:38:29 Purification Of Metals 05:48:49 Production Of Metals 05:55:08 Production Of Compounds 06:00:34 Decomposition Of Compounds 06:02:30 Questions 1-11: NCERT Textbook Questions: Chapter 14 06:50:08 Activity 1-7: NCERT Intext Activities Solved 07:12:01 Question 12 NCERT Textbook Questions: Chapter 14

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Chemical Effects Of Current Introduction: Full Chapter Explanation 01:20​ Introduction Of Chemical Effects Of Current Introduction 23:03​ Do Liquids Conduct Electricity 01:14:10​ Important Terms- Electrolyte, Electrodes And Electrolytic Cell 01:50:08​ Detection Of Weak Current Flowing Through A Liquid 03:03:59​ The Case Of Distilled Water, Tap Water, Sea Water And Rain Water 03:50:25​ Chemical Effects Of Electric Current 04:34:04​ Applications Of Chemical Effects Of Electric Current 04:40:33​ Electroplating 05:38:29​ Purification Of Metals 05:48:49​ Production Of Metals 05:55:08​ Production Of Compounds 06:00:34​ Decomposition Of Compounds 06:02:30​ Questions 1-11: NCERT Textbook Questions: Chapter 14 06:50:08​ Activity 1-7: NCERT Intext Activities Solved 07:12:01​ Question 12 NCERT Textbook Questions: Chapter 14

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[@saqibganai9938]

Mam confusing is that, what we have to take Cooper sulphate or copper road . Or both of them . 4:52:47

[@MagnetBrainsEducation]

Hi there! Thanks for your question. In this video, we discussed that copper sulfate is the chemical compound that is used to kill algae in the pond. However, copper rods are an additional feature to help prevent algae in the future. Hope this helps!

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Copper sulphate solution and carbonic rods when performing electrolysis.

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Both

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00:00 Chemical Effects Of Current Introduction: Full Chapter Explanation 01:20 Introduction Of Chemical Effects Of Current Introduction 23:03 Do Liquids Conduct Electricity 01:14:10 Important Terms- Electrolyte, Electrodes And Electrolytic Cell 01:50:08 Detection Of Weak Current Flowing Through A Liquid 03:03:59 The Case Of Distilled Water, Tap Water, Sea Water And Rain Water 03:50:25 Chemical Effects Of Electric Current 04:34:04 Applications Of Chemical Effects Of Electric Current 04:40:33 Electroplating 05:38:29 Purification Of Metals 05:48:49 Production Of Metals 05:55:08 Production Of Compounds 06:00:34 Decomposition Of Compounds 06:02:30 Questions 1-11: NCERT Textbook

[@sl.legends8451]

Ma’am I have a doubt that after electroplating will the metal(iron) still attract towards magnet

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3:00:48 Mam, is the positive terminal of the battery to be connected with the compass?

[@MagnetBrainsEducation]

Hi there! Absolutely, it is important to connect the positive terminal of the battery to the compass. We are glad that you are taking such a keen interest in our educational videos. Keep watching and let us know if you have any more queries.

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Yes.

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MAM TOO GOOD BUT DO YOU HAVE SOME SHORT REVISION ON THIS IT IS VERY LONG

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The most wonderful explanation ever ...

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Mam app padhate bahut badhiya hoo lekin apki video kaffi lambi hoti h to please usse short karein 3 ya 4 hour video is enough for clss 8

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The green coating on copper utensils is known as basic copper carbonate it is a mixture of copper hydroxide and copper carbonate

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Ma’am if Water is dividing the ionic compounds into its respective ions then what’s the work of electrolysis? Is electrolysis not breaking the ionic compounds into ions in an electrolyte? Hoping for a reply.

[@MagnetBrainsEducation]

Thank you for your question! Water does indeed play a role in the electrolysis of ionic compounds - it helps to break down the compound into its individual ions so that they can be drawn towards the electrodes and undergo a chemical reaction. However, the electrolysis process itself is what causes the

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Thank you for the reply🙏🙏

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Mam I am confused why electricity flow in liquid with the help of ions??

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i amm vaishnavi. 01:03:46 how do we know that which ion would carry positive ion or negative ion?

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If the atom has more electrons than protons, it is a negative ion. If it has more protons than electrons,it is a positive ion.

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Thank you so much for your lovely comment! We're so happy to hear that you're enjoying our videos and finding them helpful. We hope you continue to enjoy them and find them useful in your studies. :)

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Effects Of Current Introduction: Full Chapter Explanation 01:20​ Introduction Of Chemical Effects Of Current Introduction 23:03​ Do Liquids Conduct Electricity 01:14:10​ Important Terms- Electrolyte, Electrodes And Electrolytic Cell 01:50:08​ Detection Of Weak Current Flowing Through A Liquid 03:03:59​ The Case Of Distilled Water, Tap Water, Sea Water And Rain Water 03:50:25​ Chemical Effects Of Electric Current 04:34:04​ Applications Of Chemical Effects Of Electric Current 04:40:33​ Electroplating 05:38:29​ Purification Of Metals 05:48:49​ Production Of Metals 05:55:08​ Production Of Compounds 06:00:34​ Decomposition Of Compounds 06:02:30​ Questions 1-11: NCERT Textbook Questions:

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No doubts left .... Amazing explanation 😊😊 the time is worthy as the explanation is so nice ...

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4:17:07 🤣🤣🤣🤣 to 4:17:26

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2:01 mam electrodes toh ek -ve aur ek +ve charge ka hota hai toh yaha par beakers mai iron kaise electrode hova aur konsa wala positive or negative

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2:42:42 what is full form of AAA battery

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Thanks for writing in! The AAA battery's full form is Android App Association.

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response:You are absolutely right! Vidhuti ma'am is the best teacher for science! I'm glad you enjoyed the video and found it helpful. Thank you for your comment!

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Mam Electrolyte Solution Kya Hota Hai

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We are glad that you like our videos. We will certainly try to make videos for Olympiads.

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Excuse me Ma'am I have a doubt which is if we will we would increase the amount of vinegar or citric acid in a solution then will it conduct electricity or not?

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Yes 😊

[@pronobmondal5236]

yNamaste mam l have a query. Mam how can steel be prone to rusting ? This l am asking because we have learnt in our previous chapters that steel is an alloy of iron , chromium , nickel and also we have learnt that alloying prevents rusting . Hope my doubt has reached you and will be cleared soon. Thank you

[@MagnetBrainsEducation]

Hello! Thank you for your comment and question. Steel is an alloy of iron, chromium, and nickel, but it can still develop rust. Rust is an oxidation process that occurs when iron or its alloys like steel come into contact with oxygen and moisture. Because steel is an alloy of iron, it is still susceptible to rusting. I hope this answers your question. Let me know if you have any other questions. Thank you!

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Mam which force is produced when magnet shows deflection? 6:23:46

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Magnatic force......

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Mam , in the electroplating setup ; will the cathode also produce its ions ...if it is a metal ??

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Mam pls reply🙏

[@ZiyeshWilliam1389]

Mam please tell me that when metal from impure metal road (Anode) dissloves in the electrolyte. At that will ions to be made ? And then the ions formed , diposit on the cathode... 5:46:00

[@MagnetBrainsEducation]

Thank you for your comment! In the video, we explain that the anode (the impure metal rod) will dissolve and release metal ions into the electrolyte solution. These metal ions will then deposit onto the cathode, forming a pure metal. We hope this helps!

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Thank you ♥️

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I have a doubt.....What is the difference between positive charged particles and negative charged particles ??? Please answer

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Positively charged particles or protons are bound in the nucleus of the atom while the negatively charged particle or the electron lies on the outermost shell of the atom and is free to move out of or inside an atom depending on the stability required by the atom. This is another difference but the main one is the charge present on them. (You're welcome)

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Non kon class 8 ka best student h like karo

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So sweet explaination ❤❤

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Thank you so much for your kind words! We are glad that our educational videos are helping you understand the material better. We strive to make quality educational content that is accessible to everyone.

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Mam ham log detection of weak current mein nail ka kya use hai?

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Nail ko as an electrode use Kiya jata hai...

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2:37 itts easitest way to understand ❤

[@ZiyeshWilliam1389]

Previously you have said that if we want to electroplate iron key with copper then we have to taken the solution of copper as electrolyte i.e copper sulphate solution. But when we want to electroplate iron taps with Chormiun which electrolyte, we have to taken then ?

[@MagnetBrainsEducation]

Hi there! Thanks for your comment and question. For electroplating iron taps with chromium, you will need to use a chromic acid solution as the electrolyte. Let us know if you have any other questions!

[@cevzo07]

2:02:22 Mam how can we know weather a solution contain ions or not ?

[@davmathsclasses9132]

We can make an arrangement for the flow of electric current, if the solution conducts electricity then it contains ions and If the solution do not conducts electricity so it means ions is not present in that particular solution.

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😂😂

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long video but just a spectacular explanation it literally gave deep understanding thankyou so much mam😇

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Ma'am I have a doubt that when hcl breaks into ions then why H have positive charge and CL have negative charge. Answer ma'am please

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Chemical effect❌time and data pass✅

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Nice teaching mam and thank you mam

[@TheKrishna..]

Ma’am if possible,please make a video about how does the electric current flow through a circuit (not through an electrolyte),what is the direction of the electric current to flow,more elaborately.

[@MagnetBrainsEducation]

Thank you so much for your comment! We will try to make a video on this topic as soon as possible.

[@AMITAPRADHAN-o9p]

🎉

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Your videos are extremely good! I am able to understand everything! Thanku mam!

[@ishantkumar9556]

Mam ,I have a query. If we electroplate any metal like copper that can could spoilt the vegetables stored in it with another metal like tin. Aftet this, would food also spoilt?

[@MagnetBrainsEducation]

Thanks for your question! Electroplating two different metals together can cause the metals to react and corrode, which can affect the food stored in it. We suggest that you do not use electroplated metals to store food as it may not be safe for consumption.

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[@bengalimomsutapa3596]

Ma'am if water is breaking the molecules into ions then what electrolysis do??

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Thanks ma'am for understanding me this chapter.many things that I not know but after watching this my doubts are crystal clear.💜

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Thanks for your kind words! We are glad that our videos helped you clear your doubts and understand the chapter better. We hope our videos continue to be of benefit to you.

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Hy

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Wish I had science teacher like you it takes patience , endurance and talent to be a teacher but you make it look so easy day after day. I hope know how much me appreciate you

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Thank u mam u are a wonderful teacher

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What is the full form of AAA battery 2:38:19

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Mam ap notes ka PDF bhi description mai dal di giyae

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Thank you mam for this nice explanation Liked the lecture 👍🏼

[@pramodkumar-uy4ru]

Ma'am one question is there that -if liquid have not electron,proton or neutron then how ions are formed by loosing or gaining electrons? Please answer me

[@PoornimaDwivedi4]

No, practically this is not possible. Every thing is made up of atoms which contains electrons, protons and neutrons.

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Can you please make short videos (3-4 hours duration).

[@saqibganai9938]

Mam, firstly thank you I understood now . But according to your words if we take HCl solution and two electrodes in an electrolytic cell , positive ions of Hydrogen (H) will attract negative electrode and similar to other. Am I right?

[@MagnetBrainsEducation]

That's exactly right! We hope our videos have helped you understand the concept better. Keep up the good work!

[@saqibganai9938]

Thank you ❤️

[@vandanaagrahari1081]

Thankyou mam for such nice explanation 👍👍🙏

[@MagnetBrainsEducation]

Thank you so much for your kind words! We're glad you're enjoying our videos and we hope you continue to learn a lot from them!