General Organic Chemistry Questions|Aromaticity |Csirnet June 2022 crash course |September 2022 exam
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- Опубликовано: 15 сен 2024
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Amazing explanation sir, I didn't understand in Msc but now I am getting the concept. Thank you for choosing teaching because u can create next generation. Thank you sir and Thank you J team for ur valuable classes... Very special Thanks to Jyothi garu...
Excellent explanation of the molecular orbital interaction .....it is really helpful to understand organic chemistry .....thank you so much sir 🔥🔥✌
sir u explain organic from a grass root level....now i can say my concepts are clear😊
Thank you so much sir 🙏🏼🙏🏼🙏🏼🙏🏼
Thank you so much team j chemistry for this very helpful initiative.
Sir in question 9 when bond angle increases %of s character increases hence p character decreases and when p character decreases acidity decreases hence it order should be 1>2>3>4
Yes this is order of acidity...so order of pka is opposite
@@sachinzambre5050 aap sp3 carbon hote hue bhi use nonaromatic kyu keh rahe hain...sp3 hone par toh homoaromatic hota h n??
Sir, in question no 2, nitrogen inversion is possible for option d, right? If it occurs then lone pair cannot be readily available for donation. So option c can be correct? Please correct me if I'm wrong. Thank you.
When nitrogen is a part of rigid system,,, inversion not possible.
Nitrogen inversion is present in six membered rings like piperidine. So i would like to know if the same happens when acetyl group is attached to nitrogen.
Yes a i am also confused bcz 6 memberd ring goes in fleping so 5>6>4>3 donar ability
there is piperidine (Hydrogen at position of -COCH3 group),thene there is nitrogen inversion due to flexibility of 6 membered ring ...but when there is -COCH3 group ,there lone pairs of nitrogen get conjugated with-C=O group and ni inversion occurs.
@@sachinzambre5050 Okay Sir. Thank you
Q.5. Sir option b and c ka structure samajh nahi aaya
Q.6. iss questions m jo hydrogen bonding ho rahi hai usme 7 membered ring form ho rahi hai 7 membered ring stable hogi kya?
Ha sir...C wale me agar ek Nitrogen pe ch3 lagega to dusra nitrogen -I lagake Jo nitrogen pe positive charge ayega N-C bond ke bad usko stabilized karega to C kyu nahi answer...B kyu 1st.....?
I have a doubt in 5th ques as carbocation is not stable at bridged position acc to bredt rule so ans should be a>b>c??
A m nitrogen k sth bulky group lge h to wo next ch3 grp kaise lega aur yhn reaction fast batana tha...
When nitrogen attacks on CH3l ,there is formation of 4 th bond of nitrogen so it gains positive chagre but it is still tetrahedral i.e. bond angle is about 109 .
According to bredts rule carbonation at bridged position is not stable because carbonation requires 120 degree angle which is not possible at Briged position due to strained system.but here is no formation of carbonation. Our nitrogen is planar and it is not carbonation
According to bredt rule sp² centre is not possible on bridge head position but if N takes proton although cation is formed but the hybridization will sp³.so it bredt rule will not violet
Sir, 7th question option d me sp3 hybridised carbon is there, so homoaromaric naa you said non - aromatic. Which one is correct sir?
Excellent explanation Thank you sir
Sir ques. 8 , option 2 pyridine m Nitrogen sp3 hybrid h, bo aromatic hoga kya yaa nhi
Excellent explanation sir...👍👌
Exllent explaination sachin sir
Excellent teaching
Dhonnobad didi
Finally ....here 🥰🥰🥰
Easy to understand
Sir, kya Q. No. 2 mei, nitrogen inversion is possible in option d which makes it less available for donation. ? Please help
If there is piperidine (Hydrogen at position of -COCH3 group),thene there is nitrogen inversion due to flexibility of 6 membered ring ...but when there is -COCH3 group ,there lone pairs of nitrogen get conjugated with-C=O group and ni inversion occurs.
Excellent 👌👌👌👌👌
sir sare question smjhm m aa gye
😊
👌👌👌superb class sir😍
Which refrence book should I refer for goc??
Please reply mam🙏
Maine organic chod di thi sir apka vedio dekh k lga ki mai kr lungi thnku sir
why H bonding is not occuring before loosing H+? according to that maleic acid is should be less acidic than fumaric...
When H+ ion is loosed,the negative charge on oxygen make more strong hydrogen bonding than lone pair
@@sachinzambre5050 hey I'm just out of grade 12 and not sure if I'll have to pick bsc courses in biological domain ,the reason im holdin back is because I've heard graduates say even after masters we are overworked and underpaid.Hardky get paid around 30k? With experience does it get better?
Hello
I failed to complete my application for csir net, is there anything that NTA will help me out ?
Sir general aptitude bhi Kara dijiye please csir net
Sir R u From Kolhapur Maharashtra??
Mam test q nahi mil rahe he
Very nice sir 👍👍
This is good
Sir ye test kha milega..free of cost h ya buy krna pdega
It is free of cost. Watch first 5 minutes of the video
Sir aap name glat bta rhe trans mailech acid hota aur cis fumaric acid
No ! Cis is maleic and trans is fumaric.please check it
@@sachinzambre5050 maine bhi to yhi bola hai maleic cis hota hai and trans fumaric hota hai
Question 4samaj nahi aaya nitrogen lone pair ki orbital kaise hogi
In given compounds,lone pairs on nitrogen are at axial position, either up or down.
@@sachinzambre5050 sr nitrogen ne tih srf do hi bond bnaye hai frr bhi wo apne lone pair se donate krega?
Since here we see only steric factor and not electronic factor,....the lone pairs are less bulky than atom .so hydrogen attached to nitrogen is at equatorial position and lone pair is at axial position. There should be hydrogen on equatorial position which is not shown here due to typing error.
👍👍😍😍🥰🥰