I really like their channel, straight to point, effective explanation and no hours of videos for small topics…I hate it when other channels spent 30 mins on really simple basic concepts and over explain them.. I wish I had discovered this channel a day before a exam
Thank you so much. The ques which you asked at last were really tricky. Thank you for standard and informative videos. Your physics videos are also great. Loved your channel.
Thanku sir..!! Best Chemistry lectures in english is really rare in youtube..most videos are in hindi which i dont understand much.Sir Thanku soo much..from the text i dint understand this portion..but u simplified the whole thing..And those 13 minutes were totally worth it...😊😊
But sir my question is that ...we can only get metals from earth crust and pure metal by refining it ...then from where we take pure metal wire ... the wire which you said we can take from market .that came from where?
That metal is produced by much complex and time consuming method ,thus taking a copper which already pure by such method and doing electrolytic refining is easier
@@Aarush1-INDIANEXO-LHey,can u solve my doubt? See at anode ,Impure copper loses 2e and these 2e move towards towards cathode where the copper (copper after its gets refined) gets eventually deposited and gets 2e which were released by itself at anode.So how is the reaction correct? Like reactant at anode and product at cathode is just the same.
@@HalalStudyTracks I did not get your question but here is a simple way to explain electrolytic refining. once electricity is passed in the soln , the electrolyte (soln) breaks down into its constituent elements for eg take cuso4 electrolyte for refining, which then breaks into cu2+ and so4- ions. the cu2+ ions(of the electrolyte) will now move towards cathode (the strip containing pure metal) . Because these ions moved there ,the amount of cu2+ ions in the electrolyte will of course get decresed. and because they got decreased the ions of cu2+ from cathode(impure metal strip) will start coming off the cathode and come into the electrolytic soln to maintain the amount(volume) of the electrolytic soln
@@HalalStudyTracksthat's what we want as we pass electricity they energize and lose 2 elections anode and cu2+ ion is released into soln and the cathode will be more electronegative by having more electrons will attract cu2+ ions. The products are the same but the places are different right i hope u got the answer.
This is crystal teaching. You are amazing and you what I should say idk respect you Sir🔥🔥🔥🔥🔥🔥🔥🔥🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥
I have a question - if you were doing this process at a large scale, does the size of the cathode matter? If you had a huge cylinder of an impure metal as the anode, but an extremely thin wire of the pure metal as the cathode, would the process still work?
Thank you sir for explaining these four topics so clearly to me. Earlier I was unable to understand these topics. Thank you for helping me and so many other students @Khan Academy.
Sir what would would happen when half of the metal in electrolyte becomes over and will copper be deposited only in the cathode present in electrolyte or also above it ?????
@@faxedits8 yes sir . This can be the case . Also I read somewhere that out of the two ions only one migrates and other one is left behind . So this may also be the case, that out of copper and hydrogen ion, only copper ion migrates and not the hydrogen.
No matter which metal you take for Purification ... It will breakdown in charged ions and attract towards cathode .... But If u take iron impure ore and try to pure it .... u have to take Pure metal of Iron and acidified Iron sulphate solution ..... But in this case as u said .... Iron layer will get deposited on pure copper if solution is acidified Iron sulphate
@khanacademy due to metallic bond , a solid block of metal does not contain neutral atoms but it contains cations and sea of electrons So electricity will not produce cu ions here Also electrons do not travel back to the source of emf, if it does then it will damage the source
Sir , I had doubt that At anode containing impurities, ( it means it contain any compound) if it is always loose Cu²+ ions My question is that An electro rod at anode loose any other compound what would happen ???
Those sulphate ions recombines with Copper from Anode and The pure copper which Sticks on cathode came from the breakdown of ACIDIFIED COPPER SULPHATE SOLUTION.... And not by Anode .... Hope you get it 😉
Those sulphate ions recombines with Copper from Anode and The pure copper which Sticks on cathode came from the breakdown of ACIDIFIED COPPER SULPHATE SOLUTION.... And not by Anode .... Hope you get it 😉
It is so because copper ions are present in the electrolyte which gets attracted to the negative electrode (cathode) when electricity is passed through the circuit
If you do the opposite connection that is impure copper as cathode and pure copper as anode then on passing electricity the pure copper rod at anode will lose cu ions and this will get deposited to the impure copper rod which is not desirable
Great one
Thank you for proving free and standard education.
Providing
I really like their channel, straight to point, effective explanation and no hours of videos for small topics…I hate it when other channels spent 30 mins on really simple basic concepts and over explain them.. I wish I had discovered this channel a day before a exam
The ending questions cleared all my doubts
Superb vdo,may you have millions of subscribers
I never fully grasped this concept until now. Thank you for your help!
This is called REAL EDUCATION!!!!! 😭❤️❤️ THANK YOU SIR!!❤️❤️🎉
I usually dont like commenting! But you deserve it! ALL YOUR EXPLANATIONS ARE AMAZING! SIMPLE BUT YET VERY EFFECTIVE!
THANK YOU SIR! :)
Thank you so much. The ques which you asked at last were really tricky. Thank you for standard and informative videos. Your physics videos are also great. Loved your channel.
Man you're a life savior
May God bless your kind heart..
Much love ❤, watching from P.N.G ...
wow the best lecture channel in my whole life ... You guys are amazing
Sir I bow down to your knowledge as well as the way you teach🙏. Truly a teacher . Thankyou
the explanation was crystal clear amazing khan academy india. the voice of urs was just like my favourite physics teacher
You are the best teacher sir. I have no words for you.
Thank you. I really despised this topic but you made it crystall clear
The Qs at the end really made it crystal clear!
Such quality videos at no cost🙏...Khan academy is indeed the best online educational platform
This is my 3rd time watching this video. Loved your explantion. It is Godly
Thank you a lot. This helps a lot in understanding the whole topic. Really appreciate it
This is legit the best video ever!!! Best explanation on youtube
This channel really deserves a million subscribers
Thanku sir..!! Best Chemistry lectures in english is really rare in youtube..most videos are in hindi which i dont understand much.Sir Thanku soo much..from the text i dint understand this portion..but u simplified the whole thing..And those 13 minutes were totally worth it...😊😊
But sir my question is that ...we can only get metals from earth crust and pure metal by refining it ...then from where we take pure metal wire ... the wire which you said we can take from market .that came from where?
That metal is produced by much complex and time consuming method ,thus taking a copper which already pure by such method and doing electrolytic refining is easier
In the complex process , the crude metal is heated and very high temperatures and reduced with the help of reducing agents .
@@Aarush1-INDIANEXO-LHey,can u solve my doubt?
See at anode ,Impure copper loses 2e and these 2e move towards towards cathode where the copper (copper after its gets refined) gets eventually deposited and gets 2e which were released by itself at anode.So how is the reaction correct? Like reactant at anode and product at cathode is just the same.
@@HalalStudyTracks I did not get your question but here is a simple way to explain electrolytic refining. once electricity is passed in the soln , the electrolyte (soln) breaks down into its constituent elements for eg take cuso4 electrolyte for refining, which then breaks into cu2+ and so4- ions. the cu2+ ions(of the electrolyte) will now move towards cathode (the strip containing pure metal) . Because these ions moved there ,the amount of cu2+ ions in the electrolyte will of course get decresed. and because they got decreased the ions of cu2+ from cathode(impure metal strip) will start coming off the cathode and come into the electrolytic soln to maintain the amount(volume) of the electrolytic soln
@@HalalStudyTracksthat's what we want as we pass electricity they energize and lose 2 elections anode and cu2+ ion is released into soln and the cathode will be more electronegative by having more electrons will attract cu2+ ions.
The products are the same but the places are different right i hope u got the answer.
Explaining excellently....
Thanks a lot sir
You explain just like my science teacher exactly same good
You are very lucky to have found such a teacher.
@@secretsuperstarmusicdoctor3209 really
@@secretsuperstarmusicdoctor3209 I feel the same
Bcoz ur science teacher watches this video too...
@@a.pal_yt2018 🤣🤣🤣
Awesome
Thanks a lot
Excellent explaination
Really it is true
I was looking for a good vdo and got the perfect one. Never forget
Why does Copper at anode lose 2 electrons?
You are great sir ..
Really well explained
The ending question really cleared all the doubts 😊
this is a real help for my seminar ,thank you so much🎉🎉🎉🎉🎉
This is crystal teaching. You are amazing and you what I should say idk respect you Sir🔥🔥🔥🔥🔥🔥🔥🔥🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥❤️🔥
I have a question - if you were doing this process at a large scale, does the size of the cathode matter? If you had a huge cylinder of an impure metal as the anode, but an extremely thin wire of the pure metal as the cathode, would the process still work?
Knowing concepts Is enough.....
Kiran Bhat buddy I’m here to learn stuff, not half-ass it for the BOARD’s
@@themanwithapan8649 OK self proclaimed metallurgical engineer let's see who scores more in boards....
@Yash P Singh ok 😁😉😉😉😉😉😉😉😉😉😉😎😎
@Yash P Singh all the best bro
I have seen many videos on electrolytic refining but this is the best of all as compared to other 🎉🎉😂😂😂
Your voice and way to teach both are very good.
That was just marvelous
Thank you sir for explaining these four topics so clearly to me. Earlier I was unable to understand these topics. Thank you for helping me and so many other students @Khan Academy.
Amazing explanation.
Thank you very much....
Thank u sir,, you explained it wonderfully
I have a doubt... Is it necessary to use sulphate salt? I mean can i use copper nitrate in this set up?
U can use copper nitrate, but sulphate salt is easy to reminder during exam, we just have to use acid of that same element.
At first I was not able to understand but you explain too much nice sir it is too easy for me now thanku so much sir
You make us ask questions and make sure that our base is strong
So we'll explained.. Thanks a lot for clearing concepts
Is it correct? I mean what is the use of electrolyte of same metal. Isn't the electrolyte dissociates first ?
I have a request that please provide sample paper for cbse upcoming board exam...
very good explanation.😃😃
Very good explanation 🙌🏻
Sir what would would happen when half of the metal in electrolyte becomes over and will copper be deposited only in the cathode present in electrolyte or also above it ?????
Wow logical explanation tq sir
amazinggggg thankyou sir for this wonderful class
Thankyou so much for giving such clearance on this topic ❤
Greatest video ever !
sir thanks a lot, it helped me to revise for my exams. ur videos r the best
Very very vey very nice excellent its thebest thankyou so much!😊🤗
U are the best 👍😍👌😉👏🎉💐🎊😇
nice video with good explanation
😊 I can understand easily
Thanks a lot
why would the copper atom in anode lose electrons ?please tell me
I want also know this
Its due to Electric current which break Impure copper into Cu^2+ and 2e^- .... thus those electron move towards positive terminal
Hope you get it 😉
Superb explanation sir
Well explained sir. Thank you
Excellent explaintion
Best teacherrrrrrr, explain each conditions!!!!
amazing explanation! thanks a lot!
Very helpful, please tell me what happened to sulphate ions
Thanks sir, you have solved my problem
👍👍👍 very good explanation sir
Sir why cupper loose electron?
Sir please help me
because its connected to cathode
Thanks sir
@@snehalatarout2543 no i am not sir
How are you sir😊@@mithunnarayanan6389
Thank you Khan Academy..
Amazing explanation
Thanku for such great video
Sir I have a question, H ions generated due to acid will also migrate towards cathode , so the copper obtained won't be contaminated with hydrogen?
Did u get the answer
Or in my opinion
As it is said that copper is 99% pure so 1 % are that impurities
H2SO4 is very low in quantity here
@@faxedits8 yes sir . This can be the case .
Also I read somewhere that out of the two ions only one migrates and other one is left behind . So this may also be the case, that out of copper and hydrogen ion, only copper ion migrates and not the hydrogen.
I have one question. What if impure electrode loses some Fe2+ ions , will they deposit on cathode? (Talking about purification of Cu)
No matter which metal you take for Purification ... It will breakdown in charged ions and attract towards cathode .... But If u take iron impure ore and try to pure it .... u have to take Pure metal of Iron and acidified Iron sulphate solution ..... But in this case as u said .... Iron layer will get deposited on pure copper if solution is acidified Iron sulphate
Excellent explaination sir.. Keep up thank you sir
Can we use this to make alloys
What a best video...is..
Thankyou so much...u really made my huge doubt xlear
Exactly what I am looking for. Please how can I get complete videos of extraction o metals for offline use
thank you , it help me a lot .
Best lesson ever on you tube
@khanacademy due to metallic bond , a solid block of metal does not contain neutral atoms but it contains cations and sea of electrons
So electricity will not produce cu ions here
Also electrons do not travel back to the source of emf, if it does then it will damage the source
Very much helpful sir 👍🙂
Sir , I had doubt that
At anode containing impurities, ( it means it contain any compound) if it is always loose Cu²+ ions
My question is that
An electro rod at anode loose any other compound what would happen ???
Thank you sir now I understood clearly
Just a 🎉Wow !! Lecture
Super explanation 👌
Very well explained.
what happen if you take another metal salt?
Can someone please explain me what happens to the sulfate ions in the solution?
Those sulphate ions recombines with Copper from Anode and The pure copper which Sticks on cathode came from the breakdown of ACIDIFIED COPPER SULPHATE SOLUTION.... And not by Anode .... Hope you get it 😉
@@skullbee5269 Thanks ☺️
@@anubhavshankhwar My honour ... hope we get fine marks in boards LMAO 🤣🤣
@@skullbee5269 yeah🤦😂
Cathode pe - charge hai to Cu-ions anode pe kyu nhi jate
👐 Thank You so much SIR
But what about sulphate ions . What happens with sulphate ions?
Those sulphate ions recombines with Copper from Anode and The pure copper which Sticks on cathode came from the breakdown of ACIDIFIED COPPER SULPHATE SOLUTION.... And not by Anode .... Hope you get it 😉
So how pure copper was obtained in the first place?
How did we get the first pure copper tho?
Does anyone know if this will work with Indium?
Very nice explanation
The explanation is best sir but we write ions as Cu2+ not Cu+2 ...
Why impure copper is taken as anode and pure copper is taken as cathode???
It is so because copper ions are present in the electrolyte which gets attracted to the negative electrode (cathode) when electricity is passed through the circuit
If you do the opposite connection that is impure copper as cathode and pure copper as anode then on passing electricity the pure copper rod at anode will lose cu ions and this will get deposited to the impure copper rod which is not desirable
@@nishaxib4434 bilkul shi
Thanks to you
My smooth brain is now slightly wrinkled
All The Best For Exam
Its great 🙂one
Fabulous explanation
Excellent. Thanks
I wanted to know what happens to so4^2- ions?