Isomerism 09 || Opical Isomers 01 || Introduction : Chiral Centre and Enantiomers JEE MAINS / NEET

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  • čas přidán 8. 12. 2018
  • For PDF Notes and best Assignments visit
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    What will you get in the Lakshya Batch?
    1) Complete Class 12th + JEE Mains/ NEET syllabus - Targeting 95% in Board Exams and Selection in JEE MAINS / NEET with a Strong Score under Direct Guidance of Alakh Pandey.
    2)Live Classes and recorded Video Lectures (New, different from those on CZcams)
    3)PDF Notes of each class.
    4)DPP: Daily Practice Problems with each class having 10 questions based on the class of JEE Mains/NEET level.
    5)Syllabus Completion by end of January, 2021 with topicwise discussion of Last 10 Years Problems in Boards, JEE Mains/NEET within Lecture.
    6)The Complete Course (Video Lectures, PDF Notes, any other Study Material) will be accessible to all the students untill JEE Mains & NEET 2021 (nearly May 2021)
    7)In case you missed a live class, you can see its recording.
    8)You can view the videos any number of times.
    9)Each chapter will be discussed in detail with all concepts and numericals
    10)Chapterwise Approach towards JEE Mains/ NEET & Board Exams.
    ***Test Series for XI & XII***
    We provide you the best test series for Class XI,XII, JEE, NEET chapterwise, which will be scheduled for whole year.
    The test series follows very logical sequence of Basic to Advance questions.&
    Evaluation of Test and Solution to all the questions at the end of the test.
    Isomerism 10 || Optical Isomers 02 || Plane of Symmetry and Centre of Symmetry JEE MAINS /NEET ||
    • Isomerism 10 || Optica...
    Isomerism 11 || Optical Isomers 03 || Enantiomers , Diastereomers, Meso , Total Isomers JEE/NEET
    • Isomerism 11 || Optica...
    Isomerism 12 || Optical Isomers 04 : Wedge Dash and Fischer Projections with R-S Configurations
    • Isomerism 12 || Optica...
    Class 11 chapter 12 | ISOMERiSM 01 | Introduction : Chain and Position Isomerism IIT JEE MAINS/NEET
    • Class 11 chapter 12 | ...
    Isomerism 02 || Structural Isomers : How to Find Total Structural Isomers D.B.E. IIT JEE MAINS/NEET
    • Isomerism 02 || Struct...
    Isomerism 03 || Functional Isomerism , Metamerism , Ring Chain Isomerism IIT JEE MAINS / NEET ||
    • Isomerism 03 || Functi...
    Isomerism 04 || Tautomerism 01 : |Condition to Show Tautomerism and Special Cases JEE MAINS / NEET
    • Isomerism 04 || Tautom...
    Isomerism 05 || Tautomerism 02 || Percentage of Enol Content N Stability of Enol JEE MAINS / NEET ||
    • Isomerism 05 || Tautom...
    Isomerism 06 | Stereoisomerism : Geometrical Isomers 01| Cis-Trans / E -Z / Syn-Anti JEE MAINS/NEET
    • Isomerism 06 | Stereoi...
    Isomerism 07 || Geometrical Isomers 02 : Cycloalkanes , Allenes , Spiro , Biphenyl JEE MAINS / NEET
    • Isomerism 07 || Geome...
    Isomerism 08 || Geometrical Isomers 03 || Number of Geometrical Isomers JEE MAINS/ NEET
    • Isomerism 08 || Geomet...
    Iomerism 13 | Optical Isomers 05 | Optical Isomerism in ALLENE , SPIRO and BIPHENYL JEE MAINS/ NEET
    • Iomerism 13 | Optical ...

Komentáře • 2,8K

  • @PhysicsWallah
    @PhysicsWallah  Před 5 lety +638

    For PDF Notes and best Assignments visit physicswallahalakhpandey.com/
    Live Classes, Video Lectures, Test Series, Lecturewise notes, topicwise DPP, dynamic Exercise and much more on Physicswallah App.
    Download the App from Google Playstore ( bit.ly/2SHIPW6 )
    Physicswallah Instagram Handle : instagram.com/physicswallah/
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    Physicswallah App on Google Play Store : bit.ly/2SHIPW6
    Physicswallah Website: physicswallahalakhpandey.com/
    LAKSHYA Batch(2020-21)
    Join the Batch on Physicswallah App bit.ly/2SHIPW6
    Registration Open!!!!

    What will you get in the Lakshya Batch?
    1) Complete Class 12th + JEE Mains/ NEET syllabus - Targeting 95% in Board Exams and Selection in JEE MAINS / NEET with a Strong Score under Direct Guidance of Alakh Pandey.
    2)Live Classes and recorded Video Lectures (New, different from those on CZcams)
    3)PDF Notes of each class.
    4)DPP: Daily Practice Problems with each class having 10 questions based on the class of JEE Mains/NEET level.
    5)Syllabus Completion by end of January, 2021 with topicwise discussion of Last 10 Years Problems in Boards, JEE Mains/NEET within Lecture.
    6)The Complete Course (Video Lectures, PDF Notes, any other Study Material) will be accessible to all the students untill JEE Mains & NEET 2021 (nearly May 2021)
    7)In case you missed a live class, you can see its recording.
    8)You can view the videos any number of times.
    9)Each chapter will be discussed in detail with all concepts and numericals
    10)Chapterwise Approach towards JEE Mains/ NEET & Board Exams.
    ****Test Series for XI & XII****
    We provide you the best test series for Class XI,XII, JEE, NEET chapterwise, which will be scheduled for whole year.
    The test series follows very logical sequence of Basic to Advance questions.&
    Evaluation of Test and Solution to all the questions at the end of the test.
    Class 11 chapter 12 | ISOMERiSM 01 | Introduction : Chain and Position Isomerism IIT JEE MAINS/NEET
    czcams.com/video/mq1L2plDTrU/video.html
    Isomerism 02 || Structural Isomers : How to Find Total Structural Isomers D.B.E. IIT JEE MAINS/NEET
    czcams.com/video/_RsvQC69GqE/video.html
    Isomerism 03 || Functional Isomerism , Metamerism , Ring Chain Isomerism IIT JEE MAINS / NEET ||
    czcams.com/video/9gti5tVKAwY/video.html
    Isomerism 04 || Tautomerism 01 : |Condition to Show Tautomerism and Special Cases JEE MAINS / NEET
    czcams.com/video/MdBxRUu81W4/video.html
    Isomerism 05 || Tautomerism 02 || Percentage of Enol Content N Stability of Enol JEE MAINS / NEET ||
    czcams.com/video/f97VxiXfjl8/video.html
    Isomerism 06 | Stereoisomerism : Geometrical Isomers 01| Cis-Trans / E -Z / Syn-Anti JEE MAINS/NEET
    czcams.com/video/C7CMdH2w0wE/video.html
    Isomerism 07 || Geometrical Isomers 02 : Cycloalkanes , Allenes , Spiro , Biphenyl JEE MAINS / NEET
    czcams.com/video/K9feZA-x0j4/video.html
    Isomerism 08 || Geometrical Isomers 03 || Number of Geometrical Isomers JEE MAINS/ NEET
    czcams.com/video/Ukyrbpu99mk/video.html
    Isomerism 09 || Opical Isomers 01 || Introduction : Chiral Centre and Enantiomers JEE MAINS / NEET
    czcams.com/video/ZiPzgGVJDvY/video.html
    Isomerism 10 || Optical Isomers 02 || Plane of Symmetry and Centre of Symmetry JEE MAINS /NEET ||
    czcams.com/video/2Lad_FQ7K2w/video.html
    Isomerism 11 || Optical Isomers 03 || Enantiomers , Diastereomers, Meso , Total Isomers JEE/NEET
    czcams.com/video/kfMToOXhpZk/video.html
    Isomerism 12 || Optical Isomers 04 : Wedge Dash and Fischer Projections with R-S Configurations
    czcams.com/video/Mjgnb1DU3LE/video.html
    Iomerism 13 | Optical Isomers 05 | Optical Isomerism in ALLENE , SPIRO and BIPHENYL JEE MAINS/ NEET
    czcams.com/video/_hK2-WkRAO0/video.html

    • @lalitshrirao2339
      @lalitshrirao2339 Před 5 lety +23

      Sir 1:03:03 jo example diya hai usame to oxygen atom same attached hai firbi vah chirl centre kese huaa

    • @tusharpatel4634
      @tusharpatel4634 Před 4 lety +1

      @@lalitshrirao2339 yep

    • @mohit_parmar1911
      @mohit_parmar1911 Před 4 lety +9

      Sir 1:03:03 jo example diya hai usame to oxygen atom same attached hai firbi vah chirl centre kese huaa???????

    • @luckykhedekar4860
      @luckykhedekar4860 Před 4 lety +11

      At 1:02:30
      listen the lecture carefully........ It will be a superimposable image..
      Sir ne bola hai ki
      1.pehle compound ki mirror image banao.....
      2.Or phir first compound (jiski mirror image banayi hai) usko 180° rotate karo .....
      3.Or phir check karo ki wo imposable image hai ya nahi....
      And iss hisaab se sulphur wala compound imposable image banayega or optically active nahi hoga.....
      And we can clearly see that.... Sulphur is bounded with two same atoms which directly shows that the compound has not any chiral centre and thus optically inactive .....

    • @luckykhedekar4860
      @luckykhedekar4860 Před 4 lety +3

      @Mr. Reality priest sir ne.....upar jo kuch maine type kiya.....wo bhi bola tha...... To mai us logic se bol raha hu

  • @tamannakaushik1733
    @tamannakaushik1733 Před 5 lety +4322

    Sir you don't imagine what is the value of you in our life

  • @myselfzaidsaraf
    @myselfzaidsaraf Před rokem +405

    For those who are confused, at 1:02:31 the sulphur is not a chiral centre as it has two oxygen atoms attached to it. Sir made a mistake here

    • @bhaimax1269
      @bhaimax1269 Před rokem +48

      thanks for clearing, i was very confused here. I googled also but didn't find anything suddenly i remeber to see comments. luckily i finds yours,

    • @meena_rani
      @meena_rani Před rokem +4

      Thank dude

    • @gurmanjotsingh07
      @gurmanjotsingh07 Před 11 měsíci +2

      Thanks bro

    • @melmsie1729
      @melmsie1729 Před 11 měsíci +4

      thank you bro I had doubt in it

    • @SAIRAMPARRE
      @SAIRAMPARRE Před 11 měsíci +2

      Thanks

  • @ravikantsharma0311
    @ravikantsharma0311 Před 3 lety +767

    I am yakeen batch student but your chemistry is also better then a Chemistry teacher 😂😂😂😂 I love you sir

    • @musicalbeatz11
      @musicalbeatz11 Před 3 lety +10

      😅😅👍👍👌👌

    • @artipolkar5940
      @artipolkar5940 Před 3 lety +11

      Prashant sir is also very awasome tecaher.

    • @sujalchede3928
      @sujalchede3928 Před 3 lety +24

      The thing is he has taught in great dept
      And the magic is he gave us many examples which most teachers don't
      So we easily get him

    • @swapnikasharma7104
      @swapnikasharma7104 Před 2 lety +2

      Same

    • @Ab_Edits12
      @Ab_Edits12 Před 2 lety +7

      Apki English bhi theek nhi😂😂"then"

  • @carguy7480
    @carguy7480 Před 4 lety +507

    Timestamps:
    9:32 Polariser
    11:45 optically active substance
    19:05 Dextro rotatory leavo rotatory
    21:55 specific rotation
    23:44 😂
    25:00 how to know optically active substance
    26:44 😅
    31:15 😅
    34:00 example lactic acid
    39:50 enantiomers
    44:00 chiral centre
    1:04:00 chiral centers no rule

    • @xMaster_96
      @xMaster_96 Před 3 lety +4

      Ok

    • @shloknagarkar
      @shloknagarkar Před 3 lety +27

      Tu sirf yehi Kam kar, thoda padh

    • @hurairaalam3
      @hurairaalam3 Před 3 lety +10

      Love u bro

    • @Iftikharahmad-wb1nk
      @Iftikharahmad-wb1nk Před 3 lety +33

      @@shloknagarkar wo pardhne ke sat sat hamari maadad bhi kar raha hain ...😡

    • @satyamraj8337
      @satyamraj8337 Před 3 lety +12

      Bro again u r in 11 th class leacture 😂😂 haha we both are lazy to complete syllabus 😂

  • @Gaurav-vn7oy
    @Gaurav-vn7oy Před 5 lety +797

    My teacher has started and ended up Optical Isomerism in 30 min and I Cant able to understand Properly at depth.Now Im satisfied.God will bless you sir.Your are great and helpful

    • @ranjeetsingh8084
      @ranjeetsingh8084 Před 4 lety +44

      My teacher finished reaction mechanism and genral organic chemistry in 2 periods ( approx. 90 mins )

    • @anjali3106
      @anjali3106 Před 4 lety +23

      My teacher finished optical isomerism in 90 minutes

    • @anshumansingh8513
      @anshumansingh8513 Před 4 lety +41

      My teacher never started it instead i am just only writing teacher made notes since last year
      Just writing only

    • @anumol2081
      @anumol2081 Před 4 lety +4

      @@anshumansingh8513 😅🤣

    • @monalisasahoo5903
      @monalisasahoo5903 Před 4 lety +1

      Thanks

  • @rahulbiswas9945
    @rahulbiswas9945 Před 4 lety +587

    kush rakhna us maa ko humesa jisne hum garib bacho ke liye alokh sir ko janm diya is dharti me ...👏👏👏👏👏

  • @avnijain4067
    @avnijain4067 Před 2 lety +46

    Sir jee mains likhte hai magar ye advanced ke topics h...itna deep me koi bhi khi bhi nhi padhayega .......SIR AAPKE LIYE ULTIMATE RESPECT H HAM SABKE MAN ME

    • @xclawnitin3890
      @xclawnitin3890 Před 2 lety +4

      Even people had subscription of cources but ye fir bhi jyada shi lgra ha 😂🤝

  • @swayamtirlotkar9377
    @swayamtirlotkar9377 Před 2 lety +255

    1:02:46 sir it(sulphur) cannot be chiral centre bcoz it has same atom that is oxygen on both sides (up and down)

  • @kunaljain197
    @kunaljain197 Před 5 lety +323

    You've changed the meaning of chemistry for me . Excellent teaching.

  • @kiransk3966
    @kiransk3966 Před 5 lety +1611

    At 1:02:30
    HSO4CH3 me do oxygen sulpher se judi hai vo kaise chiral center hoga sir

  • @arjunwared562
    @arjunwared562 Před rokem +96

    Old is Gold 🏆✨

  • @akshatchaturvedi5501
    @akshatchaturvedi5501 Před 3 lety +176

    when this was uploaded I was a student in 12th, today I am watching it as a teacher to guide my first student. sweet memories can be derived from anywhere, love you sir, aapne jo kar dia no one can do in this world. We are ready and too much glad to say we may not have Elon Musk or Warren Buffet, but we have Alakh sir, that one percent.
    love you sir.

    • @NyaysiShukla
      @NyaysiShukla Před 3 lety +5

      😃😃☺seriously!! Alakh sir is one in infinity 🤩

    • @tanmaysingh267
      @tanmaysingh267 Před 2 lety +18

      2 saal me teacher 😗

    • @northindiancooking1772
      @northindiancooking1772 Před 2 lety

      ek pe chiral carbon se directly attached h OH ..ek pe chiral carbon se attached carbon pe OH h

    • @harishchad.
      @harishchad. Před 2 lety +5

      @@tanmaysingh267 mujhe bhi ye samajh nhi aaya

    • @abhishekraghuwanshi8217
      @abhishekraghuwanshi8217 Před 2 lety +6

      @@tanmaysingh267 maybe a college student teaching some students

  • @gfalcon59
    @gfalcon59 Před 5 lety +669

    Who dislike the video
    Bas itna kehna hai kisi kabhi achha nhi Kar sakte toh bura bhi mat karo
    Alakh sir love from jharkhand

  • @EdushanYT
    @EdushanYT Před 7 měsíci +12

    Sir ke paid batch mai itni aachi chemistry nhi pdhai jaati...
    Alakh sir ka padhaya hua dimag mai baith jata hai.❤❤

  • @hanshynegi210
    @hanshynegi210 Před rokem +30

    This lecture is three years old but now it has more value then before
    OLD IS GOLD 🙂

  • @nanu9424
    @nanu9424 Před 5 lety +296

    BAS 1 EK YEAR BAAD.... BIG KOCHING MAI.... STUDENTS KI... BHEED KAM HO JAY GI..... THANKS SIR LUV....U....SO
    ...MUCH👏👏👏👏👏👏👏👏

    • @akanksha5261
      @akanksha5261 Před 5 lety +20

      Right , coaching are doing business only .

    • @channabasappadmailarad5712
      @channabasappadmailarad5712 Před 4 lety +3

      Ya ur right

    • @priyanshkashyap4065
      @priyanshkashyap4065 Před 4 lety +20

      You all still need coaching for english

    • @harshitgarg6483
      @harshitgarg6483 Před 4 lety +1

      That will only happen if his content gets better with time today it sucks

    • @skumar-dd5ek
      @skumar-dd5ek Před 4 lety +16

      @@priyanshkashyap4065 Knowing a language which was never a part of our culture is not a big thing. Criticizing people on basis of language will never prove that you are an educated person. It's just a language not knowledge.

  • @shreechaudhary02
    @shreechaudhary02 Před 3 lety +80

    This generation is blessed to have you sir.
    The future generation will miss you and we will represent you as your shinin stars

    • @kotadeepeh5963
      @kotadeepeh5963 Před 2 lety +1

      The coming generation is optical active so you can understand shinn ⭐🤟🏻🤟🏻😂😂😁😁

    • @rguktratnaalu9219
      @rguktratnaalu9219 Před 2 lety +1

      Don't worry alakh sir will make students as like him by sharing his knowledge and skills of teaching 🥳🥳🥳🥳🥳

    • @jasminerathod6422
      @jasminerathod6422 Před 2 lety

      Right.....

  • @btwitsviv1
    @btwitsviv1 Před 8 měsíci +15

    This man & his dedication towards his students is Unbelievable .

  • @SubhamSingh-gj7gm
    @SubhamSingh-gj7gm Před 4 lety +79

    Kon kon chahte h ki sir ek book likhe wo bhi unko own language me khucchuk khucchuk
    Luv u sir 😘😘
    Agr chahte ho to like kro 🙋👑

    • @rupalinimje3359
      @rupalinimje3359 Před 3 lety +2

      Yes I want they explain the concept very nicely

  • @mrsingh5172
    @mrsingh5172 Před 4 lety +17

    You have a great knowledge how to teach students.🙏 you have clear all my doubts about optical isomerism. Thank you very much sir

  • @soni...6831
    @soni...6831 Před 3 lety +12

    Aaj jab mai 12th me aa gai hu to mujhe feel ho rha hai ki sir ke ye lecturers kitne important hai, sir bdhiya optical isomerism kisi ne nai samjhaya hai. Ye char lectures ki value bhut jyada hai . Aap best ho sir , thanku so much🙏🙏🙏🙏

  • @moumitamondal4905
    @moumitamondal4905 Před 3 lety +11

    Sir you have real humanity.Salute you sir.And lots of thanks for you sir,though it is not enough for your effortless work.

  • @ssinha1701
    @ssinha1701 Před 4 lety +4

    Today is janta curfew in India aur abb Pura din physics wallah sir he chal rahe he Ghar pe. Best way to use your time during curfew... Thank you sir.

  • @kimmoya3727
    @kimmoya3727 Před 4 lety +91

    Never been interested in studies this much like I am now...... Thanks to alakh sir...

  • @Cj-nt3vj
    @Cj-nt3vj Před rokem +69

    At 1:02:40 , how are the four groups different ?? 🤔
    Double bond OXYGEN to same hai SULPHUR pe, upar bhi & neeche bhi OXYGEN, to phir different kaise hua🤔 please explain Sirji🙏

  • @yashasvigupta3251
    @yashasvigupta3251 Před 2 lety +11

    Sir...u should be awarded with TEACHER OF THE ERA award💯🇮🇳👑🥇🏆

  • @anyotherbengali
    @anyotherbengali Před 3 lety +5

    sir's teaching is soo good that I don't even feel like reading comments while the video is on!!THANK U SIR...

  • @nakshpinghal866
    @nakshpinghal866 Před 4 lety +40

    Sir thank you so much for providing such a content online free of cost. I never knew that people like u can help students for achieving their dreams. And definitely you will be the only person who will help them.. Thank you.. I don't have words to express my gratitude..

    • @shubh-youtube
      @shubh-youtube Před rokem

      Hii dude!! I wanted to know what are you doing NOWADAYS!! (take it in a positive way.). I am asking this to every old students.

    • @kalpanapathak2769
      @kalpanapathak2769 Před 11 měsíci

      ​@@shubh-youtubecan u plz tell me if optical isomerism is imp for class 12?bcoz in 11 ncert nothing is given about geometrical and optical isomers plz reply i beg u😢😢😢

    • @divyanshusharma5614
      @divyanshusharma5614 Před 7 měsíci

      ​@shubh-youtube hello dude i am asking you the same thing what you are doing now ?❤

    • @deepakjurel1599
      @deepakjurel1599 Před 5 měsíci

      Thanks

    • @deepakjurel1599
      @deepakjurel1599 Před 5 měsíci

      Alak sir lecture is more important for me sir I am in class 11 and I found lot of difficult in chem when I saw your video then my chemistry is better i thanku an we love all of them

  • @MuhammadNaeem-ok7pi
    @MuhammadNaeem-ok7pi Před 2 lety +15

    Sir ji you are good professor and your every lecturer is full confident.
    I like your lecture. Your lecture cleared my confidence and proved helpful in exam.
    I am pakistani and student of pharm D.

  • @KomalSharmaArts
    @KomalSharmaArts Před 2 lety +7

    3y ago from this one board to present 8000 cr company .... Bss mehnat kro success jhak marke piche aegi 😌✨

  • @nikki50
    @nikki50 Před 3 lety +20

    Love from bihar sir.. i haven't any word to define how much you important in our life.. i won't achieve any online online coaching but sir because of you i feel i can crack neet... Thankyou so much sir.....❤️❤️

  • @sitasingh4792
    @sitasingh4792 Před 5 lety +14

    I really respect u sir 😊 thanks for all of ur videos. Love u sir

  • @vyomgarg3742
    @vyomgarg3742 Před 4 lety +5

    Meri coaching mein jab sir ne ye padhaya tha to sab head ke upar se gaya but honestly Alakh sir... you are great... aapke lecture dekhke mujhe pura concept samjh aa gaya

  • @baijayantitripathy864
    @baijayantitripathy864 Před 3 lety +12

    Please don't forget to like sir's video if you really want to appreciate his teaching,knowledge,hard work.

  • @mounikagorolla6208
    @mounikagorolla6208 Před 3 lety +10

    really i love ur classes sir very understandable frm basic level to most difficult level

  • @luckykhedekar4860
    @luckykhedekar4860 Před 4 lety +91

    At 1:02:30
    listen the lecture carefully........ It will be a superimposable image..
    Sir ne bola hai ki
    1.pehle compound ki mirror image banao.....
    2.Or phir first compound (jiski mirror image banayi hai) usko 180° rotate karo .....
    3.Or phir check karo ki wo imposable image hai ya nahi....
    And iss hisaab se sulphur wala compound imposable image banayega or optically active nahi hoga.....
    And we can clearly see that.... Sulphur is bounded with two same atoms which directly shows that the compound has not any chiral centre and thus optically inactive .....

    • @zeshantalukder5501
      @zeshantalukder5501 Před 4 lety +2

      You are ri8

    • @atharvmahamuni9318
      @atharvmahamuni9318 Před 4 lety +5

      But sir had also said that if there would be one chiral center.....then it will 100% be optically active .... And as per sir 1 chiral center is present over here.....

    • @sankalpangira
      @sankalpangira Před 4 lety +1

      @@atharvmahamuni9318 how 2 oxygen atoms are attached to sulfur atom

    • @nandishhd134
      @nandishhd134 Před 4 lety +1

      Its exeption in sulphur....only 2 dissimilar compounds can make it chiral centre

    • @warriors7553
      @warriors7553 Před 4 lety

      Bhai mirror image khali oxygen ke wazah se superimpose kr payega left right mai nhi 180' ghumane ke bad

  • @SandraRajini
    @SandraRajini Před 7 měsíci +16

    I dont know i can crack JEE
    BUT FOR YOUR EXPLANATION TAKE A BOW😊

  • @MariyamAnsari57
    @MariyamAnsari57 Před 5 měsíci +11

    I watch your lectures at the speed of 2x and yes it seems normal to me but when it comes to gain the knowledge, the 1hr lecture at 2x speed becomes of 2 hrs even only on 2x💥👏

    • @RYAN-fv1qr
      @RYAN-fv1qr Před 5 měsíci +1

      yes bro literally i watch it at 2x speed but i don't know but each lecture takes around 1.5 hours , may be because i make notes ...

  • @subscribesbbs7058
    @subscribesbbs7058 Před 2 lety +12

    My days goes good bcoz sir always wishes me "All The Very Best"

  • @madhukathel3029
    @madhukathel3029 Před 5 lety +300

    I love your Lectures 😍😍 and Ur T-SHIRTS too 😂♥

  • @anushkaray7308
    @anushkaray7308 Před 5 lety +14

    Thanks sir for discussing the chapter so in depth

  • @risinggirl6852
    @risinggirl6852 Před 2 lety +4

    Thank you so much sir for making all tough concepts easy for us. You don't know what's your value in my life. Thanks

  • @pujandhakal645
    @pujandhakal645 Před 3 lety +52

    I am currently studying Bsc but now also l watch his videos before reading any chapters of chemistry for all basic knowledge
    Lots of love ❤️

    • @unknownrellik6939
      @unknownrellik6939 Před 3 lety +3

      Is this basic knowledge

    • @swarnilray4593
      @swarnilray4593 Před 3 lety

      🤪

    • @bhanusharma9768
      @bhanusharma9768 Před 2 lety +3

      @@unknownrellik6939 yeah bro this is
      even being a msc chemistry student I'm watching these lectures

    • @lavesharma4904
      @lavesharma4904 Před 2 lety

      Yes these lectures are very helpful for bsc also

    • @RiteshkrRawat-dv6dt
      @RiteshkrRawat-dv6dt Před 2 lety +1

      @@bhanusharma9768 plzzz bhaiya can u tell me....in doing Bsc. in chemistry will be good or not.....btw you are doing Msc in which subject??????plzzz help me 🙏🙏🙏🙏🙏🙏

  • @srilaasyagollamudi7526
    @srilaasyagollamudi7526 Před 4 lety +9

    Thank you so much sir.... My teacher finished optical isomerism in 30 mins... Now I understood completely 😊☺

  • @kunalgupta5192
    @kunalgupta5192 Před 5 lety +4

    Life changing video of my life Mera toh man kr rha hai aj hi Apke Charan sparsh kro sir plz give me ur blessings

  • @upenderram5756
    @upenderram5756 Před rokem +1

    Sir Aapke jaisa to humko nhi lgta hai ki koi teacher itna best hoga sir you are great ..

  • @love24editor
    @love24editor Před 2 lety +4

    Yrr sabhi teacher kee goc video dekhi but jo feeling yah par ate haa vo khi nahi ate
    Like for aalakh panday sir ❤️❤️❤️💕😻❤️❤️

  • @akumaX2
    @akumaX2 Před 5 lety +18

    *guys plz...appreciate what he uploads...stop saying ...sir ye krwado sir wo karwado..sir kitni mehnat krte hain..so plz first focus on what he teaches...by the way love your teaching methods a lot sir..salute*

  • @harshyadav986
    @harshyadav986 Před 5 lety +11

    Your best video for me since when I am watching your videos. This video cleared my many doubts related to class 12 chemistry and physics. U r the best sir! Thx for giving the best content.Any other teacher cannot do this.

  • @drmonikasaxena990
    @drmonikasaxena990 Před 4 lety +9

    Sir you don’t imagine what’s the importance of PHYSICS WALLAH in our lives

  • @Siyaa008
    @Siyaa008 Před 6 měsíci +5

    Thank u sir is topic me doubt tha but ab clear hai sb😇😇

  • @sarthaksumanvishwakarma6450

    sir ka teaching style Bohot sahi hai.
    Content level toh superb hai hi.

  • @mahekkumari4754
    @mahekkumari4754 Před 2 lety +23

    1:02:52 It is surrounded by O on both sides. So it can't be a chiral centre. Please clear it.

  • @keshardevi3204
    @keshardevi3204 Před 3 lety +5

    Sir aapke liye hmesa dil se dua nikalti h ❤️❤️thank you so much sir ..May god fulfill your all dreams!😊😊

  • @mousuminayak4703
    @mousuminayak4703 Před 2 lety +13

    You are always my favorite teacher forever 👌 ☺,,you really deserve a Nobel Prize 😊.. You are a very good manager bcoz u handle both the sides simultaneously 😊😊

    • @_samriti000__
      @_samriti000__ Před 2 lety

      𝓨𝓮𝓼𝓼𝓼 𝓾 𝓪𝓻𝓮 𝓻𝓲𝓰𝓱𝓽

  • @anshikasingh8506
    @anshikasingh8506 Před 4 lety +3

    Sir kitna thankyou kahe kam hi hoga really u r a knowledge booster and helper for every student of India thanks alot

  • @RahulSaini-pp5kz
    @RahulSaini-pp5kz Před 3 lety +15

    any class 12😂😂🙋🏻‍♂️🙋🏻‍♂️

  • @Aslian_chirag_18
    @Aslian_chirag_18 Před 7 měsíci +6

    Thank you sir I am a poor student of RBSE board I didn't understand this topic in approx 1 year but when I saw your video I am definitely understand all this thing right now
    Thank you sir for your precious lecture 😊 💕
    Always love Alakh sir ❤️

  • @siktaroy7440
    @siktaroy7440 Před 3 lety +4

    Thank you so much Sir. Stay safe and blessed 🙏

  • @rachittripathi3323
    @rachittripathi3323 Před 4 lety +10

    Sir you are like book with lots of concept and question along with mindblowing solution that we can access for free

  • @chinmayshegokar631
    @chinmayshegokar631 Před rokem +8

    1:02:41 how is this chiral, sp3 thik hai par valency 4 diff atom ne satisfy karni chaiye na, isme 2 oxygen hai sulphur pe

  • @neerujain28
    @neerujain28 Před 4 lety +2

    सर आप महान है। धन्यवाद आपका की आप यह खूबसूरत सा पाठ हमारे समक्ष लाए।😀😀😀

  • @waterlily650
    @waterlily650 Před 3 lety +2

    i 'm speechless, sir u
    and
    ur teaching is incredible.

  • @rafikhan9844
    @rafikhan9844 Před 5 lety +5

    Thank u for being such a great and wonderful teacher

  • @zaibashaikh529
    @zaibashaikh529 Před 4 lety +5

    Sir really you are working very hard we will also work hard like good students and give u good results once again thank you so much

  • @komalbhambhu6467
    @komalbhambhu6467 Před 2 lety +5

    Sir, today you have a huge platform of PW, but still I love to see your old vedios. Your vedios are so amazing 👍👍 thankyou so much for helping us

  • @komaldua2021
    @komaldua2021 Před 3 lety +4

    Thank you so much sir for your service. These lectures have really helped me for jee🙏

  • @Meowmeowmoew099
    @Meowmeowmoew099 Před 4 lety +18

    *_east_or_west_*
    ❤❤
    ❤*ALAKH SIR*
    Is the _best_

  • @factsindia4149
    @factsindia4149 Před rokem +4

    My teacher said this topic in just 40 min I didn't understand anything but hear I learned clearly

  • @shivanijajjela
    @shivanijajjela Před rokem +2

    Sir ur helping lakhs of people ur really great no words to express ur greatness🙏🙏🙏

  • @sidrayounus8924
    @sidrayounus8924 Před rokem +25

    You are not only the king of physics but also king of chemistry .Outstanding lecture sir❤
    from pakistan

  • @explorer3401
    @explorer3401 Před 3 lety +4

    ek acha teacher milna 11th 12th me mushkil hota hai , thanq alakh sir for helping us

  • @Am-ti3mc
    @Am-ti3mc Před 3 lety +7

    Chira Centre ki contion:-----1. The Atom should be sp3 hybridized
    2. "4" Valency different grp/atom se satisfied ho.
    Then in case of that SULPHUR at 1:00 the given valency of sulphur is 6 in compond
    But out of the 6 valency , 4 VALENCY is satisfied with different grp or Atom. THEREFORE IT IS CHIRAL CENTRE

    • @Levi_yeager
      @Levi_yeager Před 2 lety +4

      But oxygen is connected with a double bond that means no lone pair is left for it to behave as a different group?

    • @yashietasethi
      @yashietasethi Před 9 měsíci

      out of those 6 valenced bonds 4 are bonded with the same atom, i.e., oxygen so sulphur can't be a chiral centre

  • @lakshmaiahv9330
    @lakshmaiahv9330 Před rokem +2

    By your lectures only we had started feeling the concept
    Thank you very much sir. 🙏

  • @koushikhaldar5139
    @koushikhaldar5139 Před 3 lety +37

    Girl : Apni Sakal dekho ayene mein
    Me : 30:50 *Symmetrical Hai🤣

  • @fairytells7370
    @fairytells7370 Před rokem +7

    Who is still watching these videos for Neet 2023.......... sir.......
    U r just the Alakh of physics
    Who agree? ....❣️

  • @sonika4175
    @sonika4175 Před 3 lety +7

    Sir U r teaching style is awesome👌👌👌👌👌.👏 👏 👏 👏 👏, U make this confusing topic😵😵😵😵😵😵........ Soo simple..😇😇😇😇😇😇Thankyou soo much for this superb lecture video..... 💜💜💜💖💖💖💖

  • @vedhawk3872
    @vedhawk3872 Před rokem +2

    I am in IIT bombay ryt now coz of pw and all the teachers i seen in this journey..........thanks to all

  • @piyushkhandelwal703
    @piyushkhandelwal703 Před 3 lety +4

    Sir you are like a God who teach us motivate us to become a better person and help others who require our help like you sir .

  • @humairafiroz6845
    @humairafiroz6845 Před 4 lety +8

    Best tchr I've ever seen thank u so much sir

  • @niharikasahoo9521
    @niharikasahoo9521 Před 3 lety +10

    You can't imagine how much important u r for me ...
    LOTS OF LOVE ...🥰🥰🥰🥰🥰❤️❤️❤️❤️❤️❤️❤️❤️❤️

  • @ankitpareek1756
    @ankitpareek1756 Před 3 lety +2

    Sir sounded "Ek baar dekho , baar baar dekho" amazing....

  • @vedantk2259
    @vedantk2259 Před 3 měsíci +2

    definitely one of the best teachers in India.❤❤❤

  • @rakesharma777
    @rakesharma777 Před 4 lety +64

    😄👍Anybody during 🤙 lockdown 😘💯

  • @Jessica-uw6fb
    @Jessica-uw6fb Před 5 lety +6

    Thanku so much sir Ur teaching method is really amazing and making study fun

  • @ronitkrishna7601
    @ronitkrishna7601 Před 3 lety +1

    Thank you very much sir. For me now it's clear about Optical Isomerism. Thank you sir..

  • @maneeshanand995
    @maneeshanand995 Před 3 lety +1

    most lovable sir i have ever seen .... thank you so much sir !

  • @abhilekhsarmah
    @abhilekhsarmah Před 4 lety +136

    27:08 middle finger mein engagement ring...😂😂 zum zum zum zum zum......LOVE U SIR.......Best teacher....

  • @theiigotriangularround4880
    @theiigotriangularround4880 Před 3 měsíci +6

    Shit just got real

  • @MnvendrSINgH
    @MnvendrSINgH Před 3 lety +1

    Best teacher .....he is outstanding in his job 🤟💯💯💯💯💯💯💯💯💯

  • @swapnil23user11
    @swapnil23user11 Před 4 lety +1

    Sir u r gr8...aap jaisa guru bahut mushkil se hote hai..jai ho

  • @mrh1387
    @mrh1387 Před rokem +5

    OLD IS GOLD AND GOLD IS NEVER OLD

    • @azysgaming8410
      @azysgaming8410 Před rokem

      what kind of meth are you on?

    • @zohramerchant734
      @zohramerchant734 Před rokem +1

      Listen ye disymmetry hai ya dissymmetry hai? Because internet par tog dissymmetry araha

    • @mrh1387
      @mrh1387 Před rokem

      Disymmetry hai

  • @smaranika_____5392
    @smaranika_____5392 Před 3 lety +3

    sir i don't think that a teacher like you ever comes in future so i will suggest my children too to study from you 😊😁😁

  • @anudwivedi4303
    @anudwivedi4303 Před 3 lety +1

    Very very important video lecture on the CZcams channel and I am very lucky student because I have got a opportunity to study with alakh sir

  • @sakshi29055
    @sakshi29055 Před 2 lety +2

    Amazing 👏🏻..sir u r outstanding💖..u made this chapter so easy to understand 🙌🏻..thanqq🙏🏻🙏🏻

  • @aliyascorpion7249
    @aliyascorpion7249 Před 3 lety +8

    The way you say "hello bachon" is actually produce curiosity to watch the whole video 😁😁❤

  • @UROOZFATIMA190
    @UROOZFATIMA190 Před 8 měsíci +4

    Great and Best lecture sir i Really appreciate you .😊

  • @rithvikk3754
    @rithvikk3754 Před 3 měsíci +1

    hands down the best optical isomerism method

  • @deepesh7855
    @deepesh7855 Před 3 lety +2

    Sir you are a great teacher of physics and chemistry