Question

Question 6 Not yet answered Marked out of 8.00 P Flag question Two most important mode of free-radical termination is shown below. Which one is which? PH BITED. bon bon con con Select one or more: O A. (I) is termination by disproportionation and (II) is termination by coupling O B. (l) is termination by coupling and (II) is termination by disproportionation O C. Both these steps are not part of termination. These represent propagation step. O D . (I) is chain transfer and (II) is termination by Coupling O E. Both () and (II) are termination by Coupling

Answer 1

ANSWER - --- -- Since no new Mechanisms are Madical is termination formed Thus these two steps. In Case (I) There is termination by dispropotionation. since there is transfer of H from one Molecule to and then radical Molecul rh (H3) M CH3 HH Iru I ore -&t adta 7 --0- Ço! Co H H I OCH 3 4 CH₂) H CH3 CH2 H H H. I-U- Ī TT-TA I HÇOH coco он, оси, ochz ( Dispropotionation)

Method (II.) termination is coupling since too Molecules. (Radical Molecules) are coupling together to form a single Molecule. ۔ ؟ и сиз у н сизда CHз и , Сн, и لی شاه می (وام) ه کے CH AIDHL ELEPAS - -- ----- کلاه مل کل مک کم co H co co оци, осн, би (مام) So II) a termination by die propotionation is termination by coupling and (IT) so option A