Normal Spinels, Inverse Spinels and Mixed Spinels

Important topic from Entrance Exam point of view.

[@kirandeepkaur4072]

Teaching is becoming a fashion these days.. But by learning from your videos , I should say it is an Art decorated by heart and specially by your knowledge and smartness..👍👍

[@soumenpatra9301]

Thank you sir you made my concept very clear even in 5 years in B. sc or M.sc I actually didn't have a clear idea about Spinel we only used the lengthy calculation of CFSE of both A2+ as well as B3+ both in tetrahedral as well as octahedral geometry

[@dr.sonalimahule4101]

it`s really worthy ..I am studying spinel for long years but always be confused...but now the concept is all clear

[@chemguruchemistrycsir-netg8160]

Thank you sir , for such an amazingly informative vedio ... 😇❤💟

[@sss12644]

A question has come in GATE 2019.I answered that only bcz i had viewed this vedio..thank you very much sir

[@VaishnaviDevi316]

U have delivered the concept in much uncomplicated and understandable way. Thank you.

[@prabhupadavibes3214]

Every single video of yours means a lot thanks...

[@B2Chem]

Explained very smoothly... Fantastic.. thank you sir

[@hungry9916]

your shortcut and direct approach for problem solving was great...l like it very much.thanks sir

[@Enduring_soul]

Art of teaching... really satisfactory Live long sir

[@deepakkumarsahoo4935]

I had problem regarding aluminimum case , but from comments I found the answer .thank you

[@ashathomas921]

Yours are the best tutorial videos. Thank you.

[@venkatesh1751]

Thanks bro it really helps a lot you are absolutely true that books have complicated method...

[@zchemistry4435]

Tysm sir. I never prep this topic fr the csir net exam, now I can get through it.

[@SaddamShaikh-uo8eg]

sir what about co3o4 whether we have to consider low spin or high spin bcoz by considering high spin co3o4 coming inverse spinel and by considering low spin its coming normal spinel

[@prajaktakadam5974]

Its so easy tricks... N comments helps to clear doubts... Thank you so much..

[@arnisharajkhowa3468]

Thank u sir...it was very well explained..now we can find out which type of spinel it is without any confusion..thanks a lot😊

[@sijimanoharan6554]

Thank you so much for making the concept so simple and clear

[@sajidchem4u]

Sir if we have Main group elements in spinal where we can't used CFSE concept Where lattice energy will b the domaniting factors. Can u explain how these very spinal will b. Normal r inverse Plz

[@sureshsalla4254]

Wow..!! u r encyclopedia sir jii...even our professors also make this topic very complicated bt u done it in a single trick nd make Soo easy thnqqq very muchhh

[@vijayamaurya2991]

thanks for clearing this topic easily... its now simpler for any question..

[@sunandamitra1700]

Sir ur explanasn was too easy n was very helpful..thanku

[@himanshigarg6065]

which is easier hexaferrites or spinal ferrites...plz reply as soon as possible

[@tanvichemistry]

crystal field effect on lattice energy and heat of ligation is imp???

[@bhagavanchowdary2303]

Sir is there any chance to ask the this type of questions in IIT jam

[@tanvichemistry]

Mnln2O4 is normal spinel bcz d0 in both cases and mn is smaller in size so occupy tetrahedral void..??? is this ok?sir

[@abhishekraj2194]

so znal2o4 will have which type of arrangements

[@sandipbagul6549]

What is NiAl2O4 inverse, normal or mixed spinel

[@buchichem3897]

Thank you sir making it simple..it took some time to solve it before..now it is very easy for me

[@ipsitasom8593]

Thank you sir for understanding so well.

[@dixjain9635]

Which book is best for spinels?? Nd in some book FeFe204 written as normal spinels..

[@KripasindhuKarmakar]

Journey Begins for GATE-2020 with your video...

[@sachinkhatri3335]

sir your lectures are being too gud and it is being helping me a lot .sir please teach us the main group elements from CSIR NET point of view.pls sir

[@dr.subhasisbasu6791]

Sir I am following your lecturer for GATE 18. I have lot to work to achieve this Chemistry standard. Regards Subhasis Basu

[@faizahmad6868]

What will be in the case of NiGa2O4 & La2CuO4 ??

[@ksatish6258]

1k subscribers congratulations sir.....good going...excellent explanation,nice job...thnk u so much sir...

[@readyon3506]

what's the mixed spinel of MgAL2O4 ?

[@saikatmandal929]

Sir in this method CoCo2O4 is become inverse spinal. But in books it is mentioned as normal spinal. How can i explain it? Please help me sir

[@chiranjali8850]

co +3 always form low spin except with halogen , NCS-,S2-.

[@Ashwani681]

Nice sir .. Ek problem me fs gya tha bt now it's clear 😊 nice teaching way

[@138badrivishal4]

Thank u so much sir. Sir pls explain how to find nearest neighbouring ions in ionic solids.

[@mayurpatel797]

I want to know the structure of Ni3O4......spinel or inverse?????.....plz fast sir

[@sarangabaishya963]

Sir Co3O4 is normal or inverse spinels??.While following this method, it comes out to be inverse but in the books are it is mentioned normal..

[@devigag6647]

Ur way of teaching v well sir

[@nehalwaghchoure1779]

Sir, how's MgAl2O4 a normal spinel? As the size of Mg²+ is larger than that of Al³+. So how can it get fit into the Tetrahedral void respect to it's size?

[@kuldeepchoubisa9909]

congratulations sir for your 1000 subscribers. ...may good make your channel no.1 educational channel

[@kuldeepchoubisa9909]

*god

[@KripasindhuKarmakar]

@@gatechemistry Now it is 61000... Many more miles to go..

[@meghagharge9077]

Very good explanation sir. Thank you

[@ashiskumar8981]

NiCr2O4....both metal have 12 Dq...so what is it

[@supriyabodake4366]

sir can u please make vedio related to optical activity related problems such as enantiomeric exess,% of R and S .....,purity

[@ritupurnasaikia2875]

Sir...today Q came from this video...Zn ferrite normal spinel....thank you so muchhh sir

[@jenifarmazumder4289]

thanks your video helped me alot. I have another question. there are 2 spinel structures CuFe2O4 and MnFe2O4. which has higher magnetization? how do i calculate the magnetization for spinels?

[@ranitram1728]

MnFe2O4 should have higher magnetism, as it has greater no. of unpaired electrons. Cu one is the normal and Mn one is mixed spinel

[@spirit7622]

@@ranitram1728 MnFe2O4 is normal or inverse spinel?

[@ImdadulIslamexbuetian]

what is CFSE? Can't hear it, cause a lot of noise.

[@goelchemistryclasses7369]

Co3O4 is a normal or inverse spinal??

[@madmaxx8731]

It takes only 10 min to understand spinels.. Thanks a lot sir..🙃

[@parveenahmed2166]

Thank you sir. U made this so easy.

[@MukeshSharma-mv6fr]

please share a video on inner and outer sphere mechanism

[@chemshort5225]

Thanku so much sir.blessed to hear it frm u in an awesome way.

[@onlycricket8009]

6:12 sec you told low spin But in a/c to CFSE IT will be high spin. Am I right???? Please reply......

[@ranitram1728]

Yes, that would be high spin as O is weak-field ligand

[@vishalzade27]

sir Co3O4 has a normal spinal....why this is..?????

[@chinmayee4769]

Is Co3O4 is normal spinel??

[@Supdada]

Hello sir... in that... chromines u told no bivalent is having greater cfse than 1.2 but what happens instead of the weak ligand i.e., Oxygen if we put strong ligand like co automatically the d orbital spliting becomes low spin then it should occupy the t2g then it will be more than 1.2 if for ex d5 low spin in this case cfse is 2.4 then what happens...

[@khushbooverma7942]

So it is inverse spinel..... With low spin divalent...

[@chemshort5225]

Sir How to predict that MnIn2O4 is a normal spinel bcoz cfse is zero for both and sizes seems to be diffrent?

[@chemshort5225]

The same problem comes with ptOs2O4?y it is normal spinel?

[@chemshort5225]

Ya ya right.higher periods form low spin.thanku sir

[@jagadeeshmanda2497]

Gate chemistry sir platinum 12 dq

[@shamnak9807]

@@gatechemistry why fe3+ cfse is zero but not Os3+

[@saswatiroy3700]

Thank you very much sir..it helps a lot

[@khadimhussain-ng1cc]

waao such a nicd explanation ...

[@bhaktaharinayak2002]

How it is inverse

[@dhrutisanghani9395]

Co3o4 is spinel or inverse?

[@alishasethi1168]

CoAl2o4 inverse hona chahiyee acc to u but nhi e?

[@supriyabodake4366]

very nice explination thank u so much

[@vinod_10]

thanks sir hone waale hai sir 1000 good going

[@rbchemistryclasses8941]

what about NiGa2O4 spinels ?

[@Learningworld209]

thanks sir jee well explain.........

[@Chem_tons]

Thnku sir ...your's lecture r awsmm I'll undrstnd easily

[@Chem_tons]

MnCr2O4 ....Mn is present as d5 but in some book the explaination of these ques is quit dffrnt and Mn has d7 configuration ....can u tell me what is d ryt ans Is Mn go for tetrahedral void

[@Shreeshree251]

thanku so much it's really helpful sir..

[@ranitram1728]

Can u please explain for NiCr2O4, both Ni2+ and Cr3+ have same CFSE value! Should it be normal or mixed spinel?

[@josechemistryintamil11than53]

Its spinel

[@kmrudula1042]

very nice explanation ..sir

[@shrutimishra4298]

U made it very easy..thnq sr

[@monisankarroy5844]

sir you told that in ACr3O2 ,Cr has max CFSE;but in pracence of O2- ,CO is d^6 Low Spin then Co^3+ has maximam CFSE in octahedral fild because in t^2g has 6 electron,CFSE=24 dq of 1Co^3+ metal

[@harshitagupta6239]

sir in book its written that if B(+3) cfse is in octahedral is greater than A(+2) cfse in terrahedral then its norml.spinel......but u have mentioned cfse in octahedral in both d cases

[@harshitagupta6239]

+Gate chemistry ok sir...thanku for sharing ur valuable tricks

[@incognitoburrito8]

Sir what if cfse comes out to be equal as in nickel chromate. NiCrO4 please reply

[@fahmidahaque5205]

I thnk its normal spinal as d size of Ni is smaller than that of Cr.

[@ChaitanyaRaoSingh]

Sir pls explain MgFe2O4 inverse spinal?????

[@nituyadav120]

you are great sir

[@sailajapamarti7739]

Sir is it useful fo r jee

[@aribafatima4354]

Thank u sir now I got it

[@sachinkhatri3335]

sir how to know whether we have to consider low spin or high spin?

[@sachinkhatri3335]

sir cobalt complexes with oxygen as a ligand.here low spin complex results whereas it is a weak field ligand sir.

[@akankshamangla1938]

Amazingly explained

[@mamidiabhishek6809]

Sir is this topic for iit jam... Also....... 🙄🙄???

[@sonuthakur5266]

Thank you a lot of sir

[@anandharaj1436]

Sir co304 spinal or inverse spinal explain

[@sudhiringale3089]

Sir plz make some videos on Boranes and carborane

[@jakkdlaw]

I thought this was about the real spinel from Steven universe.😁

[@spades2575]

This IS the real Spinel. Spinel from Steven Universe is a character

[@Polavianus]

Hi i am a Spinel

[@soniichan6743]

Same

[@-i_own_you_-]

Same 😂

[@harshthakral7281]

sir aayi to -0.4 hai to apne + kaise kiya ye smj nhi aayi

[@Mainak714]

what about ZnMn2O4 and CoAl2O4?? I have some confusion regarding them

[@soumyadipray1502]

I think ZnMn2O4 is spinel. CoAl2O4 is inverse spinel.

[@janukumar1382]

thanks sir bt if divalent cation is transional element and tri valent is non transional element then what will be the spinel normal spinel or inverse spinel

[@janukumar1382]

Gate chemistry OK sir thanks

[@Happy-y5d]

NiAl204 is normal or inverse spinel sir

[@Ashwani681]

Coooool , sir last mint me bs yehi video kam aai mere. Too fast... Thanks

[@ashokkumar-qe5hc]

Good explination.

[@vshal1659]

thanx sir for this.... sir i have made payment of net exam through NEFT .Do i need to attach printed payment slip along with application form.

[@vshal1659]

Gate chemistry ok thanx sir

[@kshamanidhisahu9322]

Thank u sir🙏👍👌

[@prakashsaha1449]

Sir what will be the case for VCr2O4? Both V(II) And Cr(III) has same CFSE in octahedral field. So is this a mixed spinel or anything else? Help me please..

[@sanmaynair]

If the cfse is same ,its normal spinel as both the elements are transition elements.

[@fahmidahaque5205]

Since d size of Vanadium n Chromium are comparable..So i thnk it shud b mixed spinel...

[@abhishekraj2194]

here for aluminium how will we calculate cfse

[@abhishekraj2194]

thanku sir

[@MS-bg5nk]

Thank you so much sir

[@relaxingnature6438]

Awesome