Hello Bro, can you plz share ONGC interview experience video in details like this ? also what type of dress will be appropriate for the interview, I mean what was your getup for the interview( ONGC and BARC), tie is needed? clarify plz
Vaiya, application time me maine galti se cgpa to percentage conversion galti kar diya tha , par mera 60% above hya agar cgpa se percentage calculate kar ta hu to...kya interview ke documents verification me koi problem ayega?...
Bro I have query with u...about Sn1 and Sn2.. basically SN1 will occurs when there is stable. Carbocation...Sn2 with least stable carbocation irrespective of the leaving group ...u have given 2 examples one is with iodine and chlorine.....both are leaving group..and one more thing KOH is very strong base...In both the cases reaction will go SN1 pathway...chloro substituted cpd will not follow Sn2 pathway..because if u treated that one with Lewis acid..like ALCL3..Chlorine will be much easier leaving group...but in this case treating chloro compound with ALCL3 not required as u r using strong base KOH..now why it is not following Sn2 pathway is because..the stability of the carbocation..The carbon atom surrounded with 2 bulkier group..So that buliker group is giving it's electron density to the carbon atom...So that carbon is highly stable...and more strong carbocation will generate...As a result it is very difficult for the KOH to attack from the back side..even though chlorine leaves..Koh will wait until the stable carbocation forms .then it will attack.....So it will go with 2 stage .. that is formation of carbocation and then attack of nuceophile..so it is clearly SN1 ..if u want convert it to Sn2 ..then u have to replace one of the bulkier group...by hydrogen...😊😊..
@@mustafizur2288 no I have given just an example..that how sn2 favours...but I was having doubt...more than leaving group ability.. stability of the carbocation matters in sn 1 and Sn2..If the carbocation generating is stronger than it should go with Sn1 path way..in Chloro substituted example..u have told that u have converted that pathway from Sn 1 to Sn2 by Lewis acid...what my qtn is...attack of nuceophile from back side in that case is not possible ..even though u have strong leaving group...the carbocation which is generated more stronger because of the 2 bulkier groups..So Sn2 may not possible...if I was wrong..I will correct it..just for the clarification I was asking this...
I have a doubt, Jo gate score se apply krenge barc me unhe to nhi chahiye na bsc me physics ya maths bhi as a subsidiary subject?? Unka to gate scores ke basis pe hi selection hoga na?
In case of reactant pi-pi* transition present but in product nb- pi* transition present. So in reactant we get low wavelength in uv spectroscopy but in PDT get high wavelength. Another is solvent effect as solvent behave differently in each case( polar as well as non polar solvents)
Prepare basic chemistry of all chapters, and practice questions more and more. For practice purpose you call follow iit jam gate iit jee advance pyq. Not to skip any chapter bcz they ask easy questions.
Prepare 5 topics very well... starting from very basic to advance. Try to follow atleast 2 standard reference books for each chapter. In case of physical focus on derivation of formulas or how it comes.
@@mustafizur2288 আজ যারা ইন্টারভিউ এর জন্য শরটলিস্ট হয়েছে তাদের লিস্ট বেরোলো, আমার হয়েছে । একটু পার্সোনাল গাইডেন্স পাওয়া যেতে পারে ইন্টারভিউ সম্পর্কে, তোমার থেকে?
Sir i have one doubt i have completed my B.Sc with Chemistry. In B.Sc first year i have all the subject CHEMISTRY PHYSICS MATHS In second year i have Chemistry maths And in third year i have chemistry So i am eligible or not In 12th i have maths group also.
