Ziegler-Natta catalysts, used to prepare linear polymer ...

[Evvie72]

Ziegler-Natta catalysts, used to prepare linear polymer molecules, consist of:
  A)
  Lewis acids and bases
  B)
  alkali metal salts and organolithiums
  C)
  organomagnesium and alcohols
  D)
  organoaluminums and transition metal salts
  E)
  benzoyl peroxides and linear radicals

Question 2

A step growth polymer has the following repeating unit:
   
 
   
  From what two monomer units is this made?
  A)
   
 
  B)
   
 
  C)
   
 
  D)
   
 
  E)
   
 

Question 3

An example of a polyether that can be prepared from the epoxide ethylene oxide is:
  A)
   
 
  D)
   
 
  B)
   
 
  E)
   
 
  C)
   
 

Question 4

The preparation of which step-growth polymer does not involve elimination of a small molecule during the course of its formation?
  A)
  urea-formaldehyde
  B)
  polyamides
  C)
  bakelite
  D)
  polyurethanes
  E)
  polyesters

[ashely1112]

Answer to Question 1

d

Answer to Question 2

e

Answer to Question 3

c

Answer to Question 4

d

[Evvie72]

Gracias!

[xiazhe]

Excellent