Question

Identify the mistake(s) in the following mechanisms. If there is nothing wrong with the mechanism, select "There is nothing wrong with this mechanism." arro - H-Br O A) Formal charges are not indicated correctly. B) Curved arrows are missing. C) The addition occurs in the wrong order. D) Curved arrows point the wrong way. E) There is nothing wrong with this mechanism. OF) The reaction does not proceed by the most stable carbocation intermediate.

Answer 1

curved anows show movement of electrons from one atom to another. The atom which looges election gets the charge while atome which gains election gets are charge. option ® Incorrect su formal changes have been correctly indicated. Hier Ht +Bon] Ht H Que AY X - option Letton 0 One of curred arrow is missing Hence, this statement is {corect Missing orrow. Hl. Bir + option 0 Incorrect Addition is electrophilic. Hence, Ht i.e. electrophile here will add first. Then By: Addition order is comect. option ® Incomeat Arrows correctly points the movement e of electron.

option 6 Correct There is nothing wrong with mechanism. First step is addition of electrophile. second step is attack by nucleophile. stable 30 Cabocation has been formed. option 0 Incomect 30 carbocation. s, nose stable than 2° cambocation due to more inductive and hyper conjugation effect. .. Hence, reaction is proceeding through most stable con bocation intermediate 30 combocation Stable 20 carbocation less stable Hence, not formed Y o o Correct statement E comect statement word of caution : grammes of option B statement , is intriguing . st mentions . arrows'. But, since, only one amow is missing in question. we assumed it as written arrow(s)...