✨Hyperconjugation | GOC Class 11 | Lecture 4 for JEE Main, Advanced, NEET 2024
![Sachin Rana [IITB]](http://yt3.ggpht.com/uS6Xs0trlzd0ZG2wn6xRH_K8MfFD9ONT779F_nI36jb0vcCLseQgtFV9gOrRNCVu5Tc7VrMrZw=s48-c-k-c0x00ffffff-no-rj)
ฝัง
- เผยแพร่เมื่อ 12 ต.ค. 2024
- In this video, we are going to understand concepts of Hyperconjugation and Heat of Hydrogenation in General Organic Chemistry and also solve problems of JEE Mains 2024 and JEE Advance, also we will talk about detailed mechanisms with different questions. A detailed analysis will be done by Sachin Rana sir.
• Telegram Channel for Homework: telegram.me/sr...
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🚨HW Book Link: amzn.to/3SCcdfM
Sachin Rana is an IIT Bombay graduate who has done BS in Chemistry (4 Years) from the best university in India. The likes of the national topper AIR 1 Amaiya Singhal and AIR 20* Tanmay Patil have been taught Organic Chemistry by him along with the AIR 60 in the Chemistry Olympiad INCHO.
Homework Answers for the Previous Video: 20, 16. Kindly make sure to Like the video and Subscribe to the channel as more videos are coming out soon. All the best!
Match Answer ❤❤❤❤❤
Sir you teaching Style is very Different to Other Teacher in India organic chemistry 💪💪💪💪💪💪💪💪💪 Awesome I like the Teaching style Aap tu Advance ka Question tu Halwa Bna Da raha hoon .sir ❤️❤️
Q:-1:18:34
Ans:-a>b>c(a and b mein same resonace hai but a mein jab resonance kara rahe hai toh radical ke liye jyada alpha-H mil raha hai)
Thanks Bhaiya❣
thank you sir
1:09:18 experimental data is something else. Please check
This level of Advanced content on You Tube specially in Organic is very rare to find. When most of the people just give formula and shortcuts, here is Sachin Bhaiya with deep conceptual knowledge. Thank you very much for the awesome course!
I am keeping the promise from first video sir, even on sunday I will finish this lecture and the homework associated with it, My GOC is improving day by day with these videos thank you so much
(2025 aspirant)
All the best
@@sachinranaiitbsir can you please speak in English also , because many Telugu people also watching your lectures
YESSIRRR TELUGU 4L @@RamGodari
@@RamGodari ille
@@RamGodari just like you southern Indians say us learn kannad, Tamil, Telugu
I as northern india is also saying you to learn hindi
Phele time lag rha tha aapke teaching style se coordination banane se lekin ab sahi coordination baith rha hai ... thankyou sachin bhaiya
I wanted to express my heartfelt gratitude for your outstanding delivery of organic chemistry content. Your passion and expertise truly made the subject come alive for me. Thank you for being such an amazing teacher! ❤❤❤
Pw and no one can't afford this level of teacher He don't work for money teach for students love ❤
Hat's off sir ❤
And we pray your all dreams come true 😇
answer bhi coment kr de bhai smjh aa gya to
@@shivamhota7898 shi baat hai😅
@@Its_divya.tiwari74
putting 199th comment
in 11th i used to think bhaiya is another IITIAN "flexing" their IIT degree (i didnot prepare for jee in 11th and 12th but knew what iit jee was) , today in my drop year back to this channel to study ORGANIC idk what coaching teacher really thought, here in these videos its just relevant stuff no BS
True I m also starting my 12 so clearing my oc backlogs and will follow bhaiya only for 12 oc
Sir i am always waiting for your lecture and these lectures are very rich content..... Compare to others....... Abb lag raha hai ki advanced ho jayega.......... Love you sachin sir you are the best...... For this lectures for free........ ❤❤❤❤❤❤❤❤
❤❤
When you realise thats called real advance level content>>>>>>>>
BRO EK BAAT BTAO ...SACHIN SIR NE PURA OC KARWAYA KI UTUBE HAI
nahi mat dekho@@Neversimp
kya bol rha h bhai??nahi karvaya h?@@ProfessorHalfwit
@@Neversimp yes he did
Let him be underrated @@amritraj1308
In gadho ke paas mat Jane do ( utube 🤡)
Best channel founded on over a youtube this channel will rock on TH-cam. bhaiya thank u so much provide best lecture 🥺🥺
Love you sir unacademy me ap se pura OC padhe the aj IIIT bhagalpur me hai CSE branch thank you sir❤
S. a>b>c Nice explanation ..... chemistry me physics jaise logics se pdhe to maza aye, its all science
In case of A and B alpha hydrogen to same hai na ap shyad ek extra gin rhe ho voh sp2 carbon wala hydrogen hai correct me if i am wrong please SO SHOULDNT IT BE A=B
@@pranav2370Due to resonance a > b
@@devilburnsinhell7791 But a and b have pi-pi and pi-free radical resonance . Can you explain more clearly please
@@probro6743 If you'll draw HC structures of A and B (using pi bond ), in A, 2 degree carbanion is formed whereas in B, 3 degree carbanion is formed so A will be more stable than B.
i am a 2025 aspirant and my GOC is that much wasted that i am doing hyperconjugation now, but i will try to complete the whole playlist though i have less time, but realized that this level Organic chem content is actually high level and not available in other channels.....lots of love bhaiya💛
Answer to homework Q is a>b>c. a and b have extended conjugation so c is least stable. And a has more hc structures than b so a is the most stable structure. Thanks bhaiya for another wonderful lecture ❤😊.
Hey, can you please tell how did you figure out a had more structures than b?
@@AbhirajRaoair33Count the no of alpha hydrogens
@@navkhr352 No that's not it😅 just draw the str u will find it
Bhaiya mein kabhi Aise Organic chemistry Padhai hi nhi the Thank God Ke Aapka Lecture Yt per Free of contain provide + ADV level tak Bhaiya mein Aapka Directly Wala Questions bhi Deakhe hai Sahi mein pyra Aapke Notes se Questions the 😮😮😮😮😮😮 i am 2025 Students love u so much sir ❤️❣️🙏☺️☺️😌 Bhaiya kay mein Agar Aapka LEC Pura Tak January jak Dekhe gay tu Organic will easy or not plz reply me bhaiya ❤❤❤❤❤ jai hind I am from Nepal ❤❤❤❤❤❤
1:05:11 why didn’t we use hyperconjuncation in example O for comparison of stability
Same doubt
Same doubt plz clear
A>b>c is the answer of last question because in first option resonance is dominating and in second hyperconjugation with three alpha hydrogen and third has little resonance soA>b>c
So you're saying radicals also contribute to resonance.
Hmmm.. interesting..
1:18:20
Home work ques .
A>b>c.3°,2°,not good resonance after hyperconjugation
Behen thoda elaborate karna please
HW question ---> A > B > C............. more alpha H in A than B than in C
Looking nice in Indian Attire bhaiya
in case of A and B alpha hydrogen to same hai na ap shyad ek extra gin rhe ho voh sp2 carbon wala hydrogen hai correct me if i am wrong please SO SHOULDNT IT BE A=B
1:04:00 Sir shouldn't the order be d>b>c>a as in c angle is 72 which is more deviated from 120 as compared to 90. pls clarify sir
It's a mistake! It is 108° rather than 72°.
Angle in a regular polygon is determined by
180×(number of sides) - 360
Hence fir a regular Pentagon 180×5 - 360=540.
Now for one angle just 540÷ 5 which is 108°
you are the only teacher who saved my organic and make this sub my fav.
ohh my god, your teaching is so good and clear, I used to just cram it up earlier but now its so clear and understandable, thankyou very much bhaiyaaa
S ka answer : a>b>c [ c to least stable hai hi ni doubt baaki a and b ke stability ke liye ek baar (pi,fr) vala resonance krke a ke jyada aplha H aa rhe hai to a is more stable than b]
THANKS BRO
At 1:04:40 भैया यहां पर आपने ये Stability का order कैसे निकाला ?? Plzz बता दो ...
Bhaiya aapne IUPAC and Structural Isomerism ke lecture aane ka date 27 Feb bataya tha but bhiaya ab tk koi lecture nhi aaya. Please bhaiya lecture upload kr dijea n bcz main abhi class 11th mein hun aur ab turant 12th mein move krna hai please bhiaya main aapke lectures aane ka bhut dino se wait kr rha hun please bhaiya lecture uplaod kr dijea
Sir the H.C structures of toluene is a bit controversial
I researched a bit using chat gpt 4
It showed that at school level it is taught 5
Meanwhile at phd level its 15
DAY 2 of OC bc: This was a really heavy lecture. Took me 3 hrs just to watch the video. I wasn't able to solve the hw al well. But I will revise this, attempt dpp and maybe it will become easier then.
Sir I don't care ki aap Jan first attempt tak organic complete karwa pate ho ya nhi, all I care is jab meri coaching ke teacher ne mujhe 11th ki organic se nafrat kara di, ab aap apni videos se sahara de rahe hai. I am extremely grateful ❤
47:45 mein sir aapne 3 kyun likha why not took into cosidration the H Atoms of CH2+ that in each of 3 cases H1+ OR H2+ can be liberated
1:05:23 in o stability to hm hyper conjugation se bhi decide kr skte hai to us hisab se to a should be most stable.
Hn bro same doubt as mine
Same doubt here!
Same doubt clear ho toh batana pls
@@ishaanverma-wc5ftclear hua?
same doubt bhai
thankyou sir ur real inspiration💗wish one day ii can seek blessings from you irl, till then working hard.... ur the best
Bhaiya /Sir Beech me thoda gap aa gya tha but ab hmari bhi 12 start hone wali hai and maine ye conplete kar lia aur abhi MS Chauhan k homework kar lungi. Meei organic barbaad hote hue dikh rahi thi but kahi se aapka channel mil gya which was the best thing happened to me. Thank you soo much bhaiya 🙏🏻💝✨. You're a real life saver❤
A >b>c
Your lectures helped me a lot in covering back of the GOC
Thanks brother for your hard work....
The level of teaching can't be matched by anyone else..❤
40:27 liken sir agar electron ABMO me jange to kya stability kam nahi hogi kya (By MOT) 🧐🧐🤨
THIS LECTURE COMPLETED FROM MY END. All hail Sachin Rana !!
Done with the lec
Answer : a>b>c
Explanation: A wale mein jab jab resonance hoga tb tb radical stabilise ho jaygea by hyperconjugation. B mein ye nhi hoga aur c mein toh resonance hi ache se nhi ho rha pure ring mein.
a>b>c
Advance ke pyq chhunu munnu hote hain 41:40😂😂😂 definately after attending your lecture ❤
started promise continue krungi
1:05:08 why we cant use alpha hydogen wala concept?
Same doubt
Jitne bhi strains aur hinderances hoti hai (like angle strain, steric hindrance) wo molecule ko kaafi unstable bana deti hai. Although kisi teacher ne ache se explain nhi kiya ki kaise compare krte hai ki kb hindrance dominate kr jaate hai but mainly yhi dekha gya hai ki hinderance ke wajah se resonance tk ruk jata hai. Isliye hinderance ke wajah se humlog hyperconjugation ko preference nhi diya aur seedha angle strain se answer de diye. (Bhaiya should make a video on it ki hinderance ko kb preference dete hai kyuki ye hinderance sala kahi bhi ghus jata hai ;-;)
Just a request bhaiya, kindly discuss the homework that u will give .😊❤
Bhai yrr hw to khud krlo hw discuss ke chakkar me lecture me problem ayegi jldi jldi lecture hone do hume ppr bhi dena 4 mahine bad🥺🥺
@@sumitchauhan7086 Bhai I am able to solve 97% of the questions given in the dpps accurately in the first time. Sometimes discussion of good questions helps in concept building which is beneficial for advance(sorry if u are preparing for mains only).
@@RaghavBhardwajjee2024 Ye shi tha..😂😂
Thankyouuu soo much sir i love you❤ bas aap iska dpp discussion bhi le lete toh aur acha hota, 1st time padhne walo ko dpp mei doubts aate hai atleast mujhe toh aaye lol😂 but anyways thankyouuuuu soooo much sir
Yes, plan hai dpp discussion ka future mein ekdum
@@sachinranaiitb sir abhi kr dijiye agar apke paas time ho toh
Nice Outfit bhaiya. Aj India Cup bhi jeet gayi, Modiji ka 73rd Bday and also aaj apke recordings se 11th portion completed
1:14:54 when we have CF3 - CH2(-), we can have negative hc right?
Bhaiya please jab jee close aa jaega to aap important sessions lene lgna jaise unacad par lete the please bhiya its a request 😢
Sir I'm a dropper student and sir SYALLBUS ko lekr panic ho rha h
Sir can u plz tell the number of lectures acc to every chapter.. Not exactly but approx.. So that i plan my studies accordingly.. Hope u reply sir..
Thanks for the amazing content...
1:08:48 Sir P question smj nhi aaya. +I more electronegative pe kaise lag sakta hai? Wo to less en pe lage ga na. To ulta hona chahiye
34.19 won't the answer of g be 2 hyper conjucating structures bcs the benzene ring can be formed in other way aswell...
We're talking about hyperconjugation.
I guess if there will be resonating structures then all three of them will show.
Right??
Sir Badne se pehle ekdm op....❤
sir in the hyperconjugation structures of toluene why did you take all the Alpha hydrogen to be different
Kya hi gjb teacher hai ye❤❤❤
53:37 mai L ka a mai 5 alpha hydrogen hoga na double bond ke right mai bhi toh 3 alpha h hai na
ans to the hw qs a)>b)>c) in a and b there is more alpha h in a so more HC and more stability
thank u bhaiya
Can you please tell how exactly did you come to this answer? Really could use some help in this question.
Bro there's equal alpha H in all three structures. But
In a- complete ring is in resonance.
b- more alpha H in resonance (no resonance in full ring)
c- less alpha H in resonance with half resonating ring.
I hope this is right.
@@emmvsingh youre wrong, after extended conjugation, there are 5 alpha-h in (a) while there are only 2 alpha-h in (b). Hence a>b>c
In case of A and B alpha hydrogen to same hai na ap shyad ek extra gin rhe ho voh sp2 carbon wala hydrogen hai correct me if i am wrong please SO SHOULDNT IT BE A=B
@@pranav2370 i am also thinking same
1:18:27 ans = a>b>c...thank you bhaiya❤ur lectures r awesome🔥
In case of A and B alpha hydrogen to same hai na ap shyad ek extra gin rhe ho voh sp2 carbon wala hydrogen hai correct me if i am wrong please SO SHOULDNT IT BE A=B
@@pranav2370yup alpha hydrogen same hai but agar aap dekho to B me Radical kr bagal me methyl hai jiski wajah se usme repulsion ho sakta hai lekin A me wo ek carbon chhor k hai methyl (uss position ko ortho position kehte Hain shayad) to A me repulsion Kam hoga as compared to B hence A zyada stable hoga. Ye bass meri explanation hai sure to hum me se koi bhi nahi hai.
a > b > c is answer for Homework question
In case of A and B alpha hydrogen to same hai na ap shyad ek extra gin rhe ho voh sp2 carbon wala hydrogen hai correct me if i am wrong please SO SHOULDNT IT BE A=B
slay kardete ho sir aap, maza aagya
at 1:05:22 I am having a confusions as (a) has 8 alpha H so it should be most stable why c is more stable it has only 4 alpha H
can anyone please explain it to me why (c) is more stable than (a)
Angle dekho beta double bond ke liye 120 stable hota hai lekin isko 90 pa rakha hai toh highly unstable aur (a)part mein vo dono mein kisi ka nhi hai double bond
As bhaiya told double bond in small angle creates instability, in A you can see it's bandra wala situation 😂 where as C has pure benzene wala angle
25:47 why arent we considering the sigma carbon hydrogen bonds of the carbon atoms adjacent to the double bond in question ? i mean what about the 2 carbons within the ring at alpha position ? they have 1 hydrogen each right ?
so total should be 2+1+1 = 4 right ?
Alpha carbon with respect to sp2 hybrid carbon must be sp3 and it should have at least one alpha-Hydrogen...that's why we didn't consider the sp2 carbons of benzene ring
@@algebraorcalculas yea I understood it.. thanks a lot
22:27 bhaiya jo H+ release huye hai kya woh CH2- waali site pr attack krke CH3 nahi bna skte, it also increases stability of this particular structure, and if it doesn't do this, then why?
It’s better to maintain actual conjugation instead of
Because resonance is stronger than Hyperconjugation
So it’s more stable that way
@@thejatangamer_1877 gotcha
1:05:20 sir Q. O mai hm hyperconjugation ke order se dekhe to a
Same doubt
Because heat of hydrogenation is inversely proportional to stability and directly proportional to reactivity here more hyperconjugation means more stability so for heat of hydrogenation reverse the order
s: a>b>c
HI. how did you get this answer?
what is the no. of alpha hydrogen in each
@@suhaneesahoo so basically we will consider alpha hydrogen of radical so alpa hydrogen on a-3 b-2 c-0
In case of A and B alpha hydrogen to same hai na ap shyad ek extra gin rhe ho voh sp2 carbon wala hydrogen hai correct me if i am wrong please SO SHOULDNT IT BE A=B
53:46 Got it correctly bhaiya, wanna ask something that although in {a} part alpha H is 2 but it has 10 Hyperconjugation structures as you taught previously when -ve charge gets into the ring and all, Isn't it ????
Resonance is more powerful.
Question S= c>b>a
Sir aap Plz Question De diya karo HW me mere jaise bhot logo ke pas m s chauhan nhi hai 🙏
Sir at 47:53 the hybridization of carbon suddenly changes so does it effect the stability or the potential energy the molecule
Please clear this doubt sir
Homework answer a>b>c , a has more hc structure than b and c has less alpha H thank you sir
Explain plz
In case of A and B alpha hydrogen to same hai na ap shyad ek extra gin rhe ho voh sp2 carbon wala hydrogen hai correct me if i am wrong please SO SHOULDNT IT BE A=B
I'm ur student from unacademy only. .......... Plzz don't stop this mission till syllabus completion....... As I depend on u only for oc
Hello bhaiya pls also bring something for physical and inorganic for 2024 batch 🥲
1:05:10 idhar no of alpha h kyu nahi dekha? i mean angle strain bhi ek factor hai lekin alpha h bhi toh rehana chaiye na
Lec 4:❤❤❤❤
HW question
Radical can be treated as carbocation.
All have same no. of Res. str.
(A) is most stable since it has most no. of Hyperconj. strc.
(B) has +I effect of CH3. (DNP)
A > B > C
🥹🤧sir pls clarify kardo ye logic shi h kya
1:19:56 HW ans B>A>C
A>B>C
a>B>c
in toluene no of hyper conjugative structures is not 11. 11 is the total delocalised structures not all are hyper conjugative
51:37 pe D option me carbon ne 6 bonds kese bna liye 😭😭
2 Hydrogen flow flow me bana diye
sir carbocation wale example mai 4 structures kyu nhi bane, 3 structures bane jisme hydrogen par positive charge hai lekin jo first structure tha jisme carbon par positive charge tha uss ko kyu count nhi kiya hai?
Sir what is pie star delocalization in jee advance pyq question
Sir you are an amazing teacher
Sir in Question Q at 1.11.28
How do we know ki group right se hi aa raha hai? Wo to left se bhi aa sakta tha
Bhai pie bond right side hai
Best content found in youtube.
32:02 kya wo 2 structure count honge hyper me jo neutral hai??
Yeee
Bhaiya please suggest any good organic theory book (I am following your lectures)
Your lectures are top notch .
I am from class 11th
Advanced problems in oc by mridul agarwal 👍
lg wade + peter sykes best combo
bhaiya ek doubt tha pehle aapne mana kiya tha alpha hydrogen se structure calculate krne ke liye , phir aapne khud agle structure meinn se vese hi kia
H.W------>A>B>C
Sir jo free radical wala hai usme hydrogen ko hatane ke baad resonance toh hua hi nhi . Please batao
Dhanyawad bhaiya❤❤
Bhaiya 1 video banake dpps discuss kar lijiye
S) A>B>C
full support sir
please can you tell the reason
In case of A and B alpha hydrogen to same hai na ap shyad ek extra gin rhe ho voh sp2 carbon wala hydrogen hai correct me if i am wrong please SO SHOULDNT IT BE A=B
This comment is 100th comment and I Have proof
4th lecture is going to take a while my CS exam is the on 10 oct so have to finsih that syllabs as well
done with the lecture and homework lessgooooooo
S= A>B>C NEXT LVL CLASS
HI. how did you get this answer?
what is the no. of alpha hydrogen in each
In case of A and B alpha hydrogen to same hai na ap shyad ek extra gin rhe ho voh sp2 carbon wala hydrogen hai correct me if i am wrong please SO SHOULDNT IT BE A=B
52:55 at (d) carbon is making 6 bond i think i didn't understand that can anyone help
Yess bro nice observation
that shock when you get to know that you dont even know the str of propene🙂🙂
Bhaiya DPP ke some questions hard hai unka explanation kisi video mein dijiye na please
sir kya mains ke pehle tak class notes ,pyqs dpps sufficient hai chemistry ke liye plz guide me
Sir plz if possible plz disscuss the pdf sheet it will be very helpful 🙏
a >b>c '
HI. how did you get this answer?
what is the no. of alpha hydrogen in each
In case of A and B alpha hydrogen to same hai na ap shyad ek extra gin rhe ho voh sp2 carbon wala hydrogen hai correct me if i am wrong please SO SHOULDNT IT BE A=B
bhaiya apne 51:36 pe carbon ke 5 bond bana diye hai
Haa wahi toh
Sir , if possible inorganic ke revision bhi kar dijiye please