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What's your blood type and why?
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Find out why different people have different blood groups. Also find out what happens when blood from an incompatible blood group is transfused to your body.

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Unacademy user
How to find dominant system while doing resonance if we are taking example of benzoyl carbonation there are two types of conjugation 1st between double bond and double bond and 2nd between double bond and positive charge then which conjugation should I select for doing resonance
Hi Payal! If you are taking the example of Benzyl Carbocation then you will see two types of conjugation: pi-sigma-pi within the Benzene ring and pi-sigma-positivie charge over the ch2+ part. So you see that the entire system is in conjugation, so carry out the resonance like you normally do. No need to worry about which is dominant and which isn't in this case. Please go through my lessons on "Types of conjugation" so that you can get to know through various examples and questions about this topic in a better manner. happy learning :)
Payal Rathod
a year ago
but mam in book they have given preference to pai-sigma-positive and not to pai-sigma-pai it is said that we need to select according to dominant and they said that dominant will be pai-sigma-positive but why I didn't get this ????
Payal Rathod
a year ago
but mam in book they have given preference to pai-sigma-positive and not to pai-sigma-pai it is said that we need to select according to dominant and they said that dominant will be pai-sigma-positive but why I didn't get this ????
Payal Rathod
a year ago
but mam in book they have given preference to pai-sigma-positive and not to pai-sigma-pai it is said that we need to select according to dominant and they said that dominant will be pai-sigma-positive but why I didn't get this ????
Payal Rathod
a year ago
but mam in book they have given preference to pai-sigma-positive and not to pai-sigma-pai it is said that we need to select according to dominant and they said that dominant will be pai-sigma-positive but why I didn't get this ????
Payal Rathod
a year ago
but mam in book they have given preference to pai-sigma-positive and not to pai-sigma-pai it is said that we need to select according to dominant and they said that dominant will be pai-sigma-positive but why I didn't get this ????
Payal Rathod
a year ago
but mam in book they have given preference to pai-sigma-positive and not to pai-sigma-pai it is said that we need to select according to dominant and they said that dominant will be pai-sigma-positive but why I didn't get this ????
Payal Rathod
a year ago
but mam in book they have given preference to pai-sigma-positive and not to pai-sigma-pai it is said that we need to select according to dominant and they said that dominant will be pai-sigma-positive but why I didn't get this ????
payal in case of the Benzyl carbocation that's the order followed but you need to keep in mind that the entire system is conjugated and the order followed is trivial. But yes you can say that since Benzene already has pi-sigma-pi type of resonance within the molecule, you can call the type of conjugation in Benzyl carbocation to be pi-sigma-positive.
Payal Rathod
a year ago
thanks
Your voice is very clear and you have improved my concentration of listening fast English. Thank you.
very nice i would like to know more about this particular topic......
wow mam you completed whole matter in just 4 minutes....commendable
wow mam you completed whole matter in just 4 minutes....commendable
mam plz in another video come with this rh topic separately
  1. 1900 Karl Landsteiner


  2. 1900 Karl Landsteiner



  3. a B


  4. A+ B+ AB+ Why do we have different blood groups? .



  5. Blood transfusion was an alien concept to early humans


  6. Type A is thought of to be the most ancient blood group


  7. SO WHAT DIFFERENTIATES ONE BLOOD GROUP FROM ANOTHER?


  8. SO WHAT DIFFERENTIATES ONE BLOOD GROUP FROM ANOTHER? ANTIGENS


  9. BACTERIA White blood cell producing antibody


  10. Our red blood cells naturally contain a lot of antigens It is these antigens that determine our blood types


  11. Patient's blood cells Antiserum Blood clotting/Agglutination


  12. There are two main antigens that form around our red blood cells, they are known as A and B Blood groups antigens and antibodies Blood Group Antigens Antibodies


  13. There are two main antigens that form around our red blood cells, they are known as A and B Blood groups antigens and antibodies Blood Group Antigens Antibodies AB A, B


  14. There are two main antigens that form around our red blood cells, they are known as A and B Blood groups antigens and antibodies Antibodies Blood Group Antigens AB A, B A, B


  15. There are two main antigens that form around our red blood cells, they are known as A and B Blood groups antigens and antibodies Antigens Antibodies Blood Group A, H B,H A, B, H AB A, B UNIVERSAL DONOR


  16. There are two main antigens that form around our red blood cells, they are known as A and B Blood groups antigens and antibodies Blood Group Antigens Antibodies UNIVERSAL RECEPIENT B,H AB A, B, H A, B