Substitution vs elimination reactions Trick | IIT JEE & NEET | Vineet Khatri Sir | ATP STAR Kota
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- Опубликовано: 30 янв 2017
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Substitution vs elimination reactions Trick | IIT JEE & NEET | Vineet Khatri Sir | ATP STAR Kota
#atpstarjee #organicchemistryjee #vineetkhatri
Because of this video I would get extra 4 marks in jee. An E2 elimination reaction came. Thanks
Short and Crisp..Yet highly conceptual..Thank you Sir!!
thanks sir i am not understand this since 2 years but your video learn me in 10 minute
Sir, your video lectures are very beneficial to us especially during this phase of preparation. Sir can you please upload a video for chemistry in which u can cover a brief discussion for different topics and their weightage in JEE Main and sir can you please explain that in which topics we should be focusing more and the topics we can leave or is it necessary to do?
It would be very good if you upload some physics topics like thermodynamics as for revision and also topics like waves on string etc.
thank you sir.
:)
MixedUp Studios ....ye xactly ...mains aane hee wala hai
Sir samaj aa gaya
Han to bhai vdo dekh ke selection hua ki nhi?
Just wanna thank you for clearing my all doubts in this single video! 🙏
Thnk uh sir helpful
very very ..... thanks sir best explained
Sir i find a lot of problem with the stereo chemistry of the products formed in organic reactions.
wowwwww.....thanku sooooooooooooo much sir....finally mujhe a gya.....
Thank you so much vineet sir🙏😊💕
Thank you very much sir. Really nice of you
Thank you so much sir for clearing tough doubts in such short minutes ...🙏🙏🙏
Most welcome! keep watching & shower your love & support for more such lectures @also keep share with all your friends.🤞
Apke lecturer se muje chemistry samaj ne laga hu.....or maza ata he padne me
Thanks sir g very helpful
Great explanation sir
thanks a lot sir
sir you said in aq.KOH -ve charge is neutralised by H2O\more stable\ in a more effective manner compared to in ROH then how it can act as strong Nucleophile
You helping us sir very thankful to you
Love u sir , from the bottom of my heart I thank u mera organic aapke vaja se hie understanding badhaa hai
Thanks a lot sir , u ar doing a great job please keep uploading videos
In the last example isnt ch3o- a weak base and therefore will prefer sn1 ??
Sir u are the best
I tried to understand it by reading many times, but I failed
Your video made it so easy to understand
Really helpful video
Very helpful video.
Sir it is very helpful
Sir when 1bromo 1phenyl ethane reacts with PhSNa then why is substitution happening even if phs will act as a bulky molecule and thus a Base? why is sn2 being followed here even then? ( Q5 alkyl halides 38 years topic wise chapter wise questions of jee )
Really helpful...
thanks a lot sir..
how to find which is nucleophillic or electrophillic add or elim
Thank you sir
is the organic chemistry video lectures provided by u are enough for neet?
plzz reply sir.
Sir, doesn't KOH(aq) prefer SN1 rather than SN2 on secondary carbon due to polar protic solvent??
Sir pls reply
strong base always favours sn2
Strong base favors E2
@@aryamanm2170 not base its strong nucleophile
Sirf h2o loge toh sn1 hoga and also if alkyl is highly hindered tab bhi sn1 hoga
yess
Thank u very much Sir 💓
aag hai sir aapki knowledge.
When heat is provided then it will obey e1 reaction am I right
Sir I am sorry as I told that u don't teach full syllabus but actually u cover all critical points very helpful videos
Dude u done a great job
Thanks ase video banate raho
Thank you so much sir
ty. very much
In the last question why Sn1 can't occur?
sir SN2th reaction course main hai ki ni ? And wat about SN2ar?
Are u really sure that the last example that u show is correct because similar question was asked in jee mains 2016 but the only difference I am getting in the answer is it shows both substitution and elimination reaction
Ur tricks are really helpful sir.... Now my concepts are cleared thanku sir..
Sir, if I will go to kota.. Then what about school?? I am from west Bengal nd class XI
sir ji u r great
Aapke charan kaha hai gurudev.
Thanku soooo much sir.
Sir I have doubt that how a good nucleophile can act as good base??
Thank you sir. Your video helped a lot
Sir ap phy chemistry ky lecture ni dty kia spectroscopy ky?????
What if in last ques it would be 2° carbon then....tb sn2 hota ya E2 .. pls rply
explain some optic parts please sir!
Thank you bro
Sir last waale xample me sn1 hoga ya ni?
amazing
i think you just saved my life
why bulky gp act as good base?
sir u r da god of organic chemistry
Thanx sir
Sir How we will identify strong base
I didn't understand the last reaction....why didn't it follow e1 or sn1 mechanism...since it makes 3-degree carbocation
Why in the last example sn1 didn't take place??
Very helpful video ..not just for neets and jee but also for NMDCAT that is held in pakistan .. Thanks from pakistan ..
Is it an Engineering entrance or a medical entrance ?
Just want to say thank u sir 🙏
These vd are very helpful when u revise chapters and get stuck in concepts
Yes, that's great
Love from pakistan....Dir
Sir, in the last question you discussed, why isn't SN1 mechanism preferred? Even as a minor product?
Please tell same doubt
Your small short videos are like photons sir, carrying plenty of information in packets.
Tell us more examples with,Dichloro ,trichloro benzene with mechanism
Very NYC video.
hello sir ...
do you also provide written notes for same ..
#do_reply
Sir in the last example when talking about 3⁰ carbocation why are you not considering sn1 and e1
Ch30- is a strong nucleophile or base..
Maja aagaya ✨👍🏻✨✨✨✨
sir please upload "product of electrolysis".
sir plz upload a video regarding calculation tricks
This concept comes in 1st year or 2nd year??
Sir, in last question (OCH3 + 2Methyl 2 Chloro Butane), why is SN1 not favourable? 3 degree carbocation is more favourable for SN1 right ?
Exactly am getting so much confusion on this regard....sn1 is favourable for more stearuc hinered one na so ....also no heat or alcoholic solvent has been provided
In the last example isnt ch3o- a weak base and therefore will prefer sn1 ??
hello sir
I have a doubt in, the last reaction of this video where we have taken 3° alkyl halide and ch3O- and we have E2 there but for elimination there should have been an alcoholic medium ?
Any Time Padhai Academy
sir but sn1 reaction could be done !?
sn1 couldn't occur as it is a strong nucleophile and attack simultaneously
madhur kushwa ch3O- itself means alcoholic medium is there. Since methoxide is not stable in water. Moerover tertiary alkyl halides prefer to undergo elimination.
sir pls make video on imp topics for jee main 200+
Best th one can get
ur videos are always helpful for me....
MAY ALLAH bless u..
thanks....
Sir hydride shift hoga second example me
Best
Sirji recemic mixture ko bhi dekho product mei...
my favourrite teacher ..he does not consume huge time and explains a lot in these short videos.....jab mujhe kisike organic nahi samajh ati to last option sir hote hain you are like god of organic chemistry
Glad to hear that 🤗 stay connected for more such lectures 🥳 prepare your level best with the help our channel & app.
@@atpstarkota sir i have done my whole organic preparation from ur channel......sir please bless me so that i can score 100 percentile in chemistry in coming attempt in previous i got 95 only becoz of u
@@geetapandey9956 how much did you get ?
@@Anonymous-fs1od i got 97 percentile and i took drop currently i am attending lectures of warior 2.0 of atp
Chota video bhada dhamaka 😍😍
Sir...ye last me jo aapne bola ki *alpha hydrogen maximum h* uska kya mtlb h?
Vaise rest of the video was clear:)
Alpha hydrogen maximum ho to alkene bhut stable hota h
Bas last question me confuse tha ki waha sn2 ki jagah sn1 kyo nahi kiya instead of elimination
Sir, in the last example, he sn1 reaction doesn't take place, because, sn1 takes place in 3• carbon also,
Sir please reply
Base is very strong this probably
Best ever
Last example me sn 1 b to Ho skta tha qki vo 3degree he?
Sir ap ni like karni per majbor kia....
Very helping video...
Love from pakistan Dir peshwer
Mast
For the example at 6:00, how do we know it wont proceed via SN1 or E1? Thank you
Ch3oh is a strong nucleophille /strong base
etoH is a weak nucleophille/weak base (if heating given)
Strong nu and bases favours Sn2/E2
sir methyl shift kab hota hai?
Sir i have a question in nucleophilic substitution reaction one nucleophile is substituted by another nucleophile..but in first reaction why u substitute Cl- by OC2H5 and not by OH- ???
Hydrogen is a better leaving group than c2h5
Alcohol lone pair side se attack krti hain fir H+ nikalta hai..alcohol or water khud nucleophile ki tarah behave krte h...OH release nahi krte..
also since it is polar protic h ion will be removed
then oc2h5 will be left
Sir in last example why ch3o- not react as per sn1 mechanism
Because och3 is not a weak nucleophille.
@@bindiyarastogi7362 yes you are correct🤗
You are like god in especially organic chemistry.
Sir at 5:35,will we also get an SN1 product as,
Cl- is a good L.G.
The substrate is 3° (C+ will be stabilized)
The Nu: is strong
Agar Aisa Hain tho, uss reaction me kaunsa major aur kaunsa minor product hoga sir?
Thanks for the video sir!!
same doubt, i was expecting SN1 product but sir ne E2 kardiya, also inke hu dusre video mein it was mentioned that RO- (Ch3O-) will cause E2 when it is present as RO-/ROH or Ch3O-/Ch3OH.
agar sirf RO- hai then substitution hoga
Oh
u should put some difficult questions also
tysm sir!!!u r grt
tnx.
.
@ 1:37 dont u think that it is a prop. of alcohols they react with alkyl halides to form alkylhalides(here the alkyl group belongs to the alcohol)
and instead OH- should have replaced Cl instead of OC2H5
What's the difference between C2H5OH and CH3O- bcz C2H5OH-----> C2H5O- , so why CH3O- is strong base and used in E2 but C2H5OH used in SN1 or E1?
Learn the concept of acidity and basicity from GOC , before commenting