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Video Lecture on Directing effect

Ortho-meta and para directing effect

Video lecture on directing effect includes the two types of directing effects i.e. ortho-para and meta directing effects exerted by the substituent of mono substituted benzene.

When a mono substituted benzene is subjected to further substitution, all the three possible di-substituted products are not formed in equal amounts but, either ortho and para products or meta product is formed predominantly.

In fact, the di-substituted product formed by further substitution of mono-substituted benzene depends upon the nature of the substituent already attached to the benzene ring, but not on the nature of the entering group. Thus, the substituent already present in the benzene ring directs the new incoming group to a definite position of the benzene ring.  This behaviour of the substituents is called the directive influence or directing effect of the substituents.

Directing effect may be of following two types-

(1)Ortho-Para directing Effect

There are certain atoms or groups which direct the new incoming group to either ortho or para position of benzene ring. These groups are called ortho-para directing groups and this effect is called ortho-para directing effect.

Click the following video link for complete Video lecture on directing effect of substituent in mono-substituted benzene-

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How to Crack NEET in First Attempt

Being a doctor has always been one of the most attractive carriers for the students of science especially of the Biology stream. The earnings of MBBS doctors and their status in our society are really attractive but it is not very easy to crack NEET and acquire all these in a moment. However, it becomes rather easier if you prepare with proper planning and your effort is consistent in the proper direction. How to crack NEET in the first attempt? It is one of the most frequently asked questions by NEET aspirants. In fact, there is not a well-set strategy to crack NEET in the first attempt, but it is well established that the best strategy to crack NEET stands on the following four pillars-

(1) Teacher selection

It is the first and the most important criteria to crack NEET. A teacher of academic or below standard can never let you prepare well for NEET. So, you should select the best mentor that can prepare you well for NEET.

(2) Matter selection

For competitive preparation what is not to study is more important than what to study. You should emphasize more on important and relevant topics (hot spots) and practice more on quality study materials rather than being trapped in rubbish materials floating in the market.

Always remember, if your mentor selection is well then he would provide you the best and relevant study materials and therefore, material selection would become automatically well.

In my opinion, you should concentrate on NCERT books that are Encyclopedia of NEET and you should improve your application part by revision and solving practice papers and previous year’s papers within the prescribed time frame again and again.

(3)Time for starting preparation

When to start preparing for NEET? It is one of the most frequently asked questions by NEET aspirants. In my opinion, you should start your preparation from class 11 and should maintain your tempo till the examinations. If you start too early then it would not be easy for you to maintain your pace for a longer time period and it would develop a frustration in you that is very dangerous for you and your preparation.

(4) Hard work

It is the fourth important pillar of your preparation to crack NEET in the First Attempt. You have selected the best mentors who are providing you the best study materials but you are not serious in your preparation but just wasting your time, then not even God can make you selected in NEET. In fact, there is no shortcut to success, except hard work. So, you should maintain consistency in your preparation. The regular study, regular revision, and solving practice problems and previous year’s papers in a specified time frame are the keys to your selection.

Important Tips for Preparation of NEET

  • Select a good mentor for all the subjects. Several educational channels and the best mentors of Physics, Chemistry, and Biology are available on YouTube. You just subscribe one of them for all the subjects and start your online learning rather than wandering here and there.
  • Centralize your study to the NCERT books and one reference book each for Physics, Chemistry, and Biology. Don’t follow too many books otherwise, you would not be able to complete your syllabus. Always remember, different books differ being only nineteen or twenty in text quality, but never differ of being nineteen and twenty-five. 
  • Follow quality notes of a good mentor for all the subjects. Don’t run behind the brand, but run behind the concise and effective notes of your mentor.
  • Make your own capsule notes for revision.
  • Maintain consistency and regularity in your preparation.
  • Revise the prepared topics regularly. Always remember, revision is not a waste of time but it makes you perfect. Always keep in mind that, “Revision is division” i.e. Revision improves your marks and ultimately your rank in the final selection.
  • Solve practice problems and previous year’s papers in the specified time frame. It would help you to finish your paper timely in the final examination.
  • Always be confident in your preparation but never be overconfident. Always read the question carefully and then answer. You usually make mistakes in overconfidence and it has to be reduced.

Important Reference Books

(1) Physics-          (1) Concept of Physics by H.C. Verma

                             (2) Modern’s abc of Objective Physics

(2) Chemistry-     (1) Dr. O.P. Tandon (GRB Publication)

                            (2) Modern’s abc of Objective Chemistry

(3) Biology-         (1) Biology by Trueman 

                            (2) Modern’s abc of Objective Biology

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About Shailendra Shukla Sir

By profession, Shailendra Shukla Sir is a senior executive officer in a very reputed power generation company. He has been a professional teacher of competitive chemistry for a long time and his sole aim is to provide quality guidance to the aspirants of UPSC, State PSCs, IIT-JEE, AIIMS, NEET, and Academic examinations, especially to those who belong to the economically vulnerable class of society and cannot afford heavy tuition fees of professional institutions. 
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