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..👍👍
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
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
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?
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
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
Bcoz Al has bigger size as compared to Fe that's why Al undergoes octahedral void... & Fe in 1/2 octa. 1/2 tetra void.... & in this case as sir says.. It undergoes normal spinel
Co3O4 as we cn write it as CoCo2O4...Here Co2+will be taken in High spin n Co3+ wl b taken low spin (Co3+ always form low spin except with halogen,-NCS,-S2)..
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?
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
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
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
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...
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..
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..👍👍
A question has come in GATE 2019.I answered that only bcz i had viewed this vedio..thank you very much sir
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
Explained very smoothly... Fantastic.. thank you sir
it`s really worthy ..I am studying spinel for long years but always be confused...but now the concept is all clear
congratulations sir for your 1000 subscribers. ...may good make your channel no.1 educational channel
*god
@@gatechemistry Now it is 61000... Many more miles to go..
Art of teaching... really satisfactory
Live long sir
6:12 sec you told low spin
But in a/c to CFSE IT will be high spin.
Am I right????
Please reply......
Yes, that would be high spin as O is weak-field ligand
your shortcut and direct approach for problem solving was great...l like it very much.thanks sir
Thank you sir , for such an amazingly informative vedio ... 😇❤💟
I thought this was about the real spinel from Steven universe.😁
This IS the real Spinel. Spinel from Steven Universe is a character
Hi i am a Spinel
Same
Same 😂
I had problem regarding aluminimum case , but from comments I found the answer .thank you
Every single video of yours means a lot thanks...
Sir I am following your lecturer for GATE 18.
I have lot to work to achieve this Chemistry standard.
Regards
Subhasis Basu
U have delivered the concept in much uncomplicated and understandable way.
Thank you.
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
Amazingly explained
Journey Begins for GATE-2020 with your video...
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
Nice sir ..
Ek problem me fs gya tha bt now it's clear 😊 nice teaching way
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?
MnFe2O4 should have higher magnetism, as it has greater no. of unpaired electrons.
Cu one is the normal and Mn one is mixed spinel
@@ranitram1728 MnFe2O4 is normal or inverse spinel?
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
co +3 always form low spin except with halogen , NCS-,S2-.
It takes only 10 min to understand spinels.. Thanks a lot sir..🙃
Thank you so much for making the concept so simple and clear
Sir ur explanasn was too easy n was very helpful..thanku
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
Very nice👍👍
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😊
*tHaT's rIgHt I hEaRd tHe sToRy oVeR aNd oVeR aGaIn*
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
Its so easy tricks... N comments helps to clear doubts... Thank you so much..
1k subscribers congratulations sir.....good going...excellent explanation,nice job...thnk u so much sir...
thanks for clearing this topic easily... its now simpler for any question..
Yours are the best tutorial videos. Thank you.
Thanks bro it really helps a lot you are absolutely true that books have complicated method...
Sir How to predict that MnIn2O4 is a normal spinel bcoz cfse is zero for both and sizes seems to be diffrent?
The same problem comes with ptOs2O4?y it is normal spinel?
Ya ya right.higher periods form low spin.thanku sir
Gate chemistry sir platinum 12 dq
@@gatechemistry why fe3+ cfse is zero but not Os3+
Your rules for predicting spinal are violeted for FeAl2O4, CoAl2O4...
... Actually these are normal spinal
why...???????
Bcoz Al has bigger size as compared to Fe that's why Al undergoes octahedral void... & Fe in 1/2 octa. 1/2 tetra void....
& in this case as sir says.. It undergoes normal spinel
Tysm sir. I never prep this topic fr the csir net exam, now I can get through it.
Thank you sir making it simple..it took some time to solve it before..now it is very easy for me
Thank you very much sir..it helps a lot
waao such a nicd explanation ...
thanks sir
hone waale hai sir 1000 good going
sir I have a question
Among oxides which one have normal spinels?
1-CuO
2-Co3O4
3-Fe2O4
4-TiO2
please explain for oxides..
Co3O4 as we cn write it as CoCo2O4...Here Co2+will be taken in High spin n Co3+ wl b taken low spin (Co3+ always form low spin except with halogen,-NCS,-S2)..
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?
Very good explanation sir. Thank you
very nice explanation ..sir
Sir...today Q came from this video...Zn ferrite normal spinel....thank you so muchhh sir
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
+Gate chemistry ok sir...thanku for sharing ur valuable tricks
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..
Sir is this topic for iit jam... Also....... 🙄🙄???
Thank u sir🙏👍👌
Mnln2O4 is normal spinel bcz d0 in both cases and mn is smaller in size so occupy tetrahedral void..??? is this ok?sir
Ur way of teaching v well sir
I thought this was spinel from Steven universe
Imao same. But I came to a lecture
O is a weak ligand therefore sipnels are high spin not low spin complexes
Thnku sir ...your's lecture r awsmm I'll undrstnd easily
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
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
Coooool ,
sir last mint me bs yehi video kam aai mere. Too fast...
Thanks
what's the mixed spinel of MgAL2O4 ?
Thank you sir for understanding so well.
good explanation thanku sir
Whats his name bruh hes so cute and teaches so well
Sir is there any chance to ask the this type of questions in IIT jam
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...
So it is inverse spinel..... With low spin divalent...
Zn is not smaller in size. In example ZnFe2O4
crystal field effect on lattice energy and heat of ligation is imp???
very nice explination thank u so much
Good explination.
what is CFSE? Can't hear it, cause a lot of noise.
which is easier hexaferrites or spinal ferrites...plz reply as soon as possible
Co3O4 is a normal or inverse spinal??
Which book is best for spinels?? Nd in some book FeFe204 written as normal spinels..
Spinel was in the garden when you posted this video
YES
what about NiGa2O4 spinels ?
Thank u so much sir. Sir pls explain how to find nearest neighbouring ions in ionic solids.
I want to know the structure of Ni3O4......spinel or inverse?????.....plz fast sir
so znal2o4 will have which type of arrangements
What is NiAl2O4 inverse, normal or mixed spinel
What will be in the case of NiGa2O4 & La2CuO4 ??
Thank you sir. U made this so easy.
ONE EXCEPTION IF I AM NOT WRONG;Co3O4;PLEASE EXPLAIN......
NiCr2O4....both metal have 12 Dq...so what is it
CoAl2o4 inverse hona chahiyee acc to u but nhi e?
sir Co3O4 has a normal spinal....why this is..?????
Awesome
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..
If the cfse is same ,its normal spinel as both the elements are transition elements.
Since d size of Vanadium n Chromium are comparable..So i thnk it shud b mixed spinel...
Can u please explain for NiCr2O4, both Ni2+ and Cr3+ have same CFSE value! Should it be normal or mixed spinel?
Its spinel
Ty sir
Sir what about nicr2o4. You said that cfse of cr3+ will be great than cfse of ni2+. But both have cfse of 12dq in octahedral field
No sir... You have not mentioned it in your comments section... Already seen it multiple times... Doubt still remains as such 😕
Will it be due to fact that cr is in +3 oxidation state and ni in +2 oxidation state
In that case we have to consider Td field CFSE value which is 0.8 in Ni 2+ and hence lower than Cr3+
Thank u sir now I got it
please share a video on inner and outer sphere mechanism
NiGa2O4 is normal or inverse spinel?
Inverse spinal.
Cfse of d6 is -4 not +4 in fe+2
STEVEN UNIVERSE SPINEL
U made it very easy..thnq sr
Is Co3O4 is normal spinel??
what about ZnMn2O4 and CoAl2O4?? I have some confusion regarding them
I think ZnMn2O4 is spinel. CoAl2O4 is inverse spinel.
Thank you so much sir....your explanation is awesome..
sir can u please make vedio related to optical activity related problems such as enantiomeric exess,% of R and S .....,purity
sir aayi to -0.4 hai to apne + kaise kiya ye smj nhi aayi