Author Question: The configurations of stereogenic centers in an atactic polymer are: A) regular B) random C) ... (Read 228 times)

TFauchery

  • Hero Member
  • *****
  • Posts: 500
The configurations of stereogenic centers in an atactic polymer are:
  A)
  regular
  B)
  random
  C)
  alternate
  D)
  the same
  E)
  opposite

Question 2

An intermediate in the free radical polymerization of propylene (CH2=CHCH3) initiated by benzoyl peroxide C6H5C(=O)OOC(=O)C6H5 is:
  A)
 
  B)
 
  C)
 
  D)
 
  E)
 

Question 3

The step responsible for chain-branching in free-radical polymerizations is the
  A)
  initiation step.
  B)
  radical coupling.
  C)
  radical disproportionation.
  D)
  chain transfer.
  E)
  radical addition.



miss.ashley

  • Sr. Member
  • ****
  • Posts: 371
Answer to Question 1

b

Answer to Question 2

b

Answer to Question 3

d



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

For a complete list of videos, visit our video library