Mechanisms

Question 1

What is the product in nucleophilic substitution with ammonia and either Br/Cl

Answer 1

With Br -> NH4Br
With Cl -> NH4Cl

Question 2

When drawing H2SO4 in electrophilic addition what is the formula

Answer 2

Draw a H bonded to -OSO2OH

Question 3

What does the :OH- act as in elimination vs nucsub

Answer 3

Elimination - Base
Nucsub - nucleophile

Question 4

What is the equation for the formation of a NO2+ electrophile in ElectroSub

Answer 4

HNO3 + H2SO4 —> NO2+ + 2HSO4- + H3O+

Question 5

How could you stop further nucleophilic substitution happening with :NH3 nucelophile

Answer 5

Have NH3 in excess

Question 6

What is the equation for the formation of a CH3CO+ electrophile in ElectroSub

Answer 6

AlCl3 + CH3COCl —> (CH3CO+) + AlCl4-

Question 7

What are the propagation steps for the decomposition of ozone

Answer 7

Cl• + O3 —> ClO• + O2
ClO• + O3 —> 2O2 + Cl•

Question 8

Why is a haloalkane attacked by a nucleophile in nucleophilic substitution?

Answer 8

• The halogen is more electronegative than the carbon
• The carbon is partially positive
• The loan pair on the nucleophile is donated to the partially positive carbon

Question 9

What is the role of the second mole of ammonia in nucsub

Answer 9

Base NOT nucleophile