Brown Ring Test and Complex || Explained by IITian || Jee Mains, Advanced | NEET | AIIMS | BITSAT

Hello Guys, In this lecture we are going to discuss a very important test and complex analysis for jee mains, advanced, NEET and AIIMS.
The identification test of nitrate ( NO3-) using conc. H2SO4 and freshly prepared FeSO4 , is known as 'Brown Ring Test'( it is the confirmation test of NO3- too ). In a normal test tube take the supplied NO3- containing sample ( say KNO3 ) . Now add conc.H2SO4 dropwise with gentle shaking and then heat it shortly using Bunsen burner & add freshly prepared greenish FeSO4. Then, you can certainly see a brown ring is formed in that test tube bcz of formation of brown colred [Fe(H2O)5 (NO)]SO4 complex. The rxn equations are belows : I just avoid balance here but it's forbidden… balance is must required in all cases…
KNO3 + H2S04 = KHSO4 + HNO3
HNO3 + FeSO4 = NO + Fe2(SO4)3 + H2O. In this step chemists assumed that nassent oxygen is produced and the oxidation is done by [O]. Nextly, FeSO4 in aqueous solution of course exist as [Fe(H2O)6]SO4, It reacts with NO.
Central metal is Iron, Oxidation state is +1, hybridisation is sp3d2, outer octahedral complex, High spin complex, Magnetic moment is 3.87 BM because of 3 unpaired electron. Many more concept has been discussed in details inside the lecture.
This lecture is designed in accordance with the Higher secondary level and NCERT. But, in higher studies in University, things might change..
You are going to learn In 'brown ring' complex, the oxidation state of iron is +3 i.e. Fe(|||) and nitrosyl exists as NO(-), simply, anti-ferromagnetic coupling occur in the complex in b/w these two ions (please do calculate, total spin, we will get 5/2, & it had been proved or justified whatever you can say by Mössbeur Spectroscopy).
Thanks
We hope, this would be great help for you Guys.
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Thanks
Team IITian Explains

[@IITianexplains]

*Important points* :- 1. Hybridisation = sp3d2 2. Geometry = outer octahedral complex 3. d-orbital involved = 4dx2-y2 and 4dz2 4. Colour = Brown due to charge transfer between Fe2+ and NO 5. Magnetic nature = Paramagnetic 6. Magnetic moment = √15 = 3.87 BM 7. Oxidation State of Central metal = +1 8. No of unpaired electron = 3 9. IUPAC Name:- Pentaaqua Nitrosonium Iron (I) Sulfate 10. NO+ acting as SFL and H2O acting as :- WFL Thanks MKA Sir

[@mpgupta7014]

Sir in my module it is given that hyb. Is d2sp3 And i even asked one teacher he even confirmed its d2sp3.. Sir now im very confused..pls help 😔

[@syeda9374]

When ever I am watching ur lecturer Finally a voice comes from my heart "May Allah bless you"

[@IITianexplains]

@@mpgupta7014 watch my lectures very carefully and read NCERT for reference. I hope, you will get your answers. 😊

[@AMITKUMAR-bb3mq]

I'm suffering from organic chemistry...plz make videos on organic chemistry chapter wise so that I can complete my syllabus before jee mains April 2019.. Plz🙏

[@kumarmritunjay]

√3*4=√12

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100 times better than fiitjee faculty

[@shaantanukulkarni5668]

Correct

[@aamejshreyansh2935]

It's not like That, If You Focus in your Coaching Classes You Will Find The Fiitjee Faculty as good as MKA sir # Teaching Content Is Same, Delivery is different

[@Debarup_Sarkar]

Nhi.. 200 times better than fitjee Normal batches faculty

[@aman-kr]

In fiitjee Teachers say that just mug up inorganic there is nothing to be teached not even touched inorganic chemistry. Another batch teacher says what will happen if you leave inorganic thats only 100/3 = 33.3, 33.3/3 = 11.1% only of the total weightage then leave it. Its the reality of coaching institute take lakhs of money. Don't study important chapters.

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Sir ek baar jo aapke paas aa gaya wo kabhi door ja ni sakta itna strong h aapka knowledge aur usse bhi jyda aapka itna innocence k saath padhana hame aese hi padhate rahe aur aage badhate rahe

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Mind blowing sir Superb Gajab Concept boom boom Mast Wonderful Very sateek

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actually very good collection of words to tell the quality of this video

[@sujantkumarkrishnvanshi121]

Best INORGANIC Channel in the universe..And I mean it..A "Guru" is one who teaches the essence of a subject.MKA sir is not that teacher who is just teaching for the sake of syllabus.He is himself devoted to research and has deep interest in the subject..That's the kind of teacher who updates himself continuously,learns himself and always gives the student the best of their own efforts..Hats off to such "gurus"..Love to MKA sir from #PATLIPUTRA😃#BIHAR😎😁😍😎😎

[@farihahkhalidshaikh1535]

well said, its almost like he does a mini phd on every topic he teaches, so knowledgable his lectures are

[@riddhijain7653]

Sir yeh "4 baatein" brain mei acche se fit kara di aapne toh..😁 Thankyou so much sir!!😀

[@divyanjalisharma7088]

Watching it for adv 2023. Thankyou so much Guruji😊

[@syeda9374]

No words to thank you sir Ur mind-blowing sir

[@cmonikaprajapati5989]

1st Thank u so much sir I was waiting U too great

[@ameywani8]

feedback: didn't waste time in advertising any coaching, up to the mark, short and sweet

[@RohitYadav-gr8nh]

Sir 2 din phle hi aapke channel pe video dekhi aur ab takk kitni dekh li ye bhi ye m khud ni bata sakti sir aap bahut accha batate h bahut jyda accha words ni h aap itni purity se padhate h

[@NeetuYadav-nv8fs]

Aaj to mai soch hi rhi thi ki sir ka video Kb aayega thank you Sir...

[@fashioncollection9393]

I have no words to say about him in your praises.

[@ramsamujhgond5494]

Sir we want topic :- ring expansion and contraction for jee advanced 2019

[@thakurjigupta1093]

It also cpme in jee mains now

[@kumarsudhanshusingh4287]

sir plz sn1 and sn2 pe v video daliye

[@MDSHAHID-ts3wc]

Thnk uu sir ... Sir please make video on things to important things to be remembered for physical chemistry also,those 4 or points for both classes. Please sir ..

[@code4vlogger652]

sir please make a video on organic test

[@brajeshkumar9676]

Thnq..sir..jii.😍😍😍😍..

[@Rage_SouL]

Sirrrr.....bohottt hiiii a66a explained kiya aapne....purraaaa samajh mein aaa gya....aur kuch cheez pehle pata bhi nhi tha...jo ki abhi jaan gya hoon....thank you very much Sir.Aur Sir...ek video Qualitative Analysis for Anions pe aa skta hai kya?

[@pratikkumargupta8748]

Thanku so much sir keep it up.... Jaise mera inorganic achha hogya belive h organic bhi ho jayega Thanku so muchh sir

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Maza aa gaya GURUJI 🙏🙏🙏🙏🙏🙏🙏🙏🙏❤❤❤❤❤

[@nabilahmad4901]

Sir, apse Meri vinti h 🙏🙏🙏, h ki , aise jitne important topic ke important points wale ( jaisa ki apne brown ring explain Kia,, sir apko bus Kia kahu??? Mere pass koi word nahi h, aap kismat se hame sahi time pe mil gye just) video bana dijiye plzzzzzzzz before neet & Aiims , sir apka Mai bahut abhari rahunga ) plzzzzzzzz sir 🙏🙏🙏🙏🙏

[@darshanshah6991]

Sir square root of 15 =3.87.

[@cartiktechnomechnobro9061]

Sir 3 unpaired electrons honge toh magnetic moment 3.87 hoga na ?

[@SaddamHussain-ob5nv]

Correct

[@RS-yu1ug]

Ha bro

[@AkhileshYadav-qc7iw]

Ha

[@niyatitummala7933]

Yeah

[@YASHRAJ-r1g4s]

All concepts explained none left ❤

[@gouravshaw5543]

Amazing video everything is Crystal clear...

[@JaikishanJaikumar]

Crystal clear

[@danishfaiz313]

Thank you very much sir. I got maximum benefit by this lecture

[@harshvardhan8517]

Than you very much sir ❤️👍👍

[@truegrabbers]

Sir will you strt rank booster series for april exam also ? previous series was damm damm helpful tq.

[@nitishmohanbatham7246]

yes Sir has already told us about the same in many comments asks in Community Tab and Previous Videos

[@sumuhegde]

Aap toh mahan hei guruji!

[@anjujha5979]

Wah ky teacher h sab samajh aa gya

[@swationeness5679]

Thanks sir

[@truegrabbers]

Whenever i get ur video , first i destroy that like button and then strt watching .

[@rohiitian_]

Sir really reallly reallly excellent explanation ♥️♥️♥️♥️♥️♥️ all concept crystal clear 🙏thank u ♥️

[@PanditJi-ku1ch]

Brilliant

[@cartiktechnomechnobro9061]

Sir do you make physical chemistry videos?

[@poonamarora7898]

Sir please make vedio on B2H6 and it's reduction properties in organic chemistry as it was asked in jee advanced 2016

[@aashimapopli1505]

Thank you sir may god bless u and your family.

[@dr.saurabhbhujbal9595]

Plz sir I want ring expansion so much confusion

[@ANKIT-bg1hn]

Yes sir please must make video on ring expansion .....✔✔🙋

[@rehanmalik3817]

Sir please ring expansion

[@shivkumarmaurya3449]

Sir please

[@shaantanukulkarni5668]

Liked❤ the video before watching

[@nrgjkrnjgknrjkgbhtr]

Sir please radial distribution function ke upar ek video baniey

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Of course u r the best faculty in chemistry on you tube..💯

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supperrbbb sir

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Best explainer in easy way

[@RT-gj3sm]

Mst video sirji 👌👌👌

[@AMITKUMAR-bb3mq]

Sir , I think you should make videos chapter wise with proper sequence of lectures by numbering as Lecture-1 , Lecture-2 and so on... Plz do it...🙏🙏

[@yogeshannapurne5308]

Very nicely explained by iitian explains 👏👏👏👏👏

[@karankunwar418]

Magnetic moment must be 3.87, for n =3 and not 2.87

[@SanjeevTheSKY]

thank you sir ,due to you i have learn so many thing.i hope you always simile in your life.

[@learningsoul7289]

Once again best one !!! 🔥🔥🔥🔥🔥🔥🔥

[@factfetch5441]

Sir lead nitrate forms brown ring..... Done my self...

[@prathamsharma3215]

sir as we know magnetic moment= n(n+2)^.5 the if magnetic moment = 2.87 =(square root)8 then there is two unpaired electron present

[@prathamsharma3215]

wait for ur reply plz reply i am confused

[@subhamsingha2433]

Sir, in accordance with ur VBT lecture, u have told that H2O is a border line ligand but here u are saying that it is a WFL...Sir, how is it so??? Furthermore u have told us that NH3 is both a border line as well as a SFL..so sir I'm confused about what type of ligand will I consider it to be??? Sir, plzz do reply....

[@mohitr9058]

Please sir alcohol, phenol, ether, aldehydes, ketones, amines ALSO🙏🙏🙏🙏🙏🙏

[@syeda9374]

Same here

[@आयुषरंजन-श5च]

धन्यवाद सर। सर organic reagents वाली सीरीज जारी रखियेगा।

[@tanishqueanandkar8965]

i just cannot explain in words how much this helped me thank you so much....

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Awesome explanation ❤️ Thanks sir👍

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Sorry sir..... today I got late..... between thankyou so much Sir 😊😊😊

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This lvl of content.. 😳

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Tysm sir!!!

[@rishabhmishra31101]

Thanks sir for this awesome video. Please continue organic reagent series.

[@Ayushkumar-hk3lc]

Thanks sitter 🙏💕🙏💕🙏💕🙏💕🙏💕🙏💕🙏💕🙏💕🙇🙇🙇🙇

[@priyampathak4155]

Sir ye jo charge transfer ho rha j use LMCT kh skte h kya?

[@IITianexplains]

Yes, You can. 😊

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सर क्या आप बता सकते हैं कोन है वो लोग जो आपकी video को अनलैक करते हैं

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Hum nahi hai😉

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Itni acchi video ko koi student unlike kar hi nai sakta ye zarur kisi dusre you tube channel walo ka kam hai jo sir se competetion karte hain or jalte hain

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Itni acchi video ko koi student unlike kar hi nai sakta ye zarur kisi dusre you tube channel walo ka kam hai jo sir se competetion karte hain or jalte hain

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@@arbaaz5812 bulkul sahi kaha bhai aapne ....✔✔🙋 Iss particular topic pr video sir ne banayi .... jo sayad jalne walo ko pasand nhi aayi .... koii nii apne mka sir sir toh best hai....👍👍👍👍👍

[@IITianexplains]

कुछ जिंदगी से हारे हुए इन्सान । क्या फ़र्क़ पड़ता है । 😁

[@Himanshu14_01]

Sir please organic reagent pr hi video bnaiye

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3:23 great sir.

[@rudrasingh3996]

Sir can u plz plz plz start uploading videos every day. Coz there are many vital topics and days are left. If u won't upload daily then I fear whether u will cover syllabus before April. Plz sir think about it. Students like it in order to draw attention of sir and please him to make daily videos

[@nitishmohanbatham7246]

Bro just think about how Busy Actually MKA Sir is. He is not a full time KZbinr who is making videos to Earn money but he has joined KZbin to help all students of India facing difficulties in Chemistry as a subject. He is Currently working as Senior Chemistry Faculty at Modulus Academy Rajasthan and he is also busy in His Research Work PHD Degree and so many things. If you have noticed he has not monetized his videos so his purpose is never that he wants to Earn Money but he just wants to make chemistry interesting and easy to score for us in different Competitive Exams .In spite of being So busy he is providing us superb quality content free of cost to us. Making quality content is really very difficult. Doing proper Research regarding a topic about which he has to make Video. Then Recording it Editing it in so good way then making a proper Thumbnail regarding Video and finally uploading it .But stop the work does not ends here. Replying to most relevant questions and all doubts asked by students and if you have Noticed he also provides very very good Description which is worth Enough of Reading so just think how much time does it take to actually make a quality video. If you are talking about Syllabus Completion then i thing it might take at least 300+ 1 hour quality videos for Advance Level and no one can teach so much in 1 Year if he is already teaching as a teacher in a Quality Coaching

[@nitishmohanbatham7246]

@JUNAID UR REHMAN thanks for your Praise but i just said what it right and what my heart feels.

[@khushbookasaudhan7598]

great sir

[@nabadipbarman9418]

Thanks sir. Sir can you please make your next video on Ellingham diagram

[@tanyabhatia87]

the best lecture ever ..... thank you very much sir

[@nayanatara8415]

Thank you Sir for such an informative and easy to understand video!

[@meghadrismusicindustry9176]

Thank you sir I helped by you

[@prabhamishra1099]

why not splitting of d orbital

[@Narendrakumar-kn6lb]

Sir pls cover topic of " type of identification for terminal alcohol aldehyde etc" victor mayer n rest need ur explaination n lecture on these topics

[@sumitmor4386]

love you sir

[@nirmit8172]

Sir, osm lecture but sir, one doubt Sir there are 5 wfl and only one sfl so how can you paired them, sir please comment , your sincere student.

[@himanshuacharya215]

Thanks sir ... Sita ram 👌🙏

[@mayukhroy7762]

Thanks a lot Sir

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Thank sir 🙏🏻🙏🏻🙏🏻🙏🏻

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seeing your lecture i am always satisfied thankx sir

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Awesome lecture bro.

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Thank you sir😊

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Thank you very much sir This video help me a lot

[@avikmaiti6055]

You are the god of chemistry

[@rishabhkaushik9360]

Great Sr I want the videos on optical isomerism

[@arvindtiwary5853]

damn this have become my fav chapter in ioc tqsm sir :)

[@shivkumarmaurya3449]

Awesome sir

[@roshniroshni8391]

Thankyou sir

[@non-wg5os]

MKA Sir, one video on ring expansion and contraction too please sir. Iss baar bhi mains mei tha iska question.

[@pranav9thclass747]

sir if it has 2.87 BM then the unpaired should be 2, but said that it has 3 unpaired electrons, please answer!!!!!

[@mohitr9058]

Ring expansion please sir 🙏🙏🙏

[@BeenaShah15]

First one to see this video

[@karveytaneja8899]

Awesome explanation sir 👍

[@tejpratapsharma9923]

Sir week field ligand ka complete list provide kar dijiye

[@mradul.bhu15]

Sir, as I think, this is a low spin complex as the number of unpaired electrons decreases from the free metal ion. Please reply soon.

[@alokm2608]

@ MKL SIR....why only one electron is paired.... Why cant we pair 2more and left one..

[@nihadzaidi7174]

Assalam alaikum sir Allah apko ilm ke neher se pilaye

[@swaggersharma3686]

thnku sir,,for this video..

[@harshtrivedi8081]

Sir which gae is released on shaking brown ring complex