Which of the following are correct statments about the reaction and the student's drawning ?

Question

Below is a student's drawing of a curved-arrow description for a substitution reaction.

http://capa.chem.sunysb.edu/nan/sn2.jpg

Which of the following are correct statments about the reaction and the student's drawning ?

a) CH(CH3)(C2H5)Br is the Lewis base

b) The central C atom in CH(CH3)(C2H5)Br is a Lewis-acidic sp3-hybridized carbon.

c) The curved arrow showing the formation of the new bond is drawn correctly

d) The curved arrow pointing from the electrons in the C-Br bond to Br is drawn correctly,
indicating these electrons leave with the Br- ion

Answer 1

a) False. OH- is the Lewis base.



b) True. You can tell it's sp3 because it has four sigma bonds, and it must be a Lewis acid because it reacts with a Lewis base.



c) False. The arrow should be drawn from the lone pairs on the O to the C, not the other way around.



d) True. The electrons in the C-Br bond flow into the Br, causing it to leave as Br-.

Answer 2

An observant eye and a poetic soul made this come alive. i ought to computer screen vicariously, this scene as you observed it, pay attention the old guy's quickened breath as he carried his heavy burden. What a beaut! you recognize i won't be in a position to critique so will pass away that to Peter and them what understand the thank you to try this. (For some reason, it jogs my memory of 'the classic Mariner'. i won't be in a position to declare why.'

Answer 3

bd