Chain Transfer MCQs : This section focuses on the "Chain Transfer" in Polymer Engineering. These Multiple Choice Questions (MCQ) should be practiced to improve the Polymer Engineering skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
Question 1
Chain transfer reactions ________ the average molecular weight of the final polymer
A. increase
B. reduce
C. remain same
D. None of the above
Question 2
Chain transfer was first proposed by Taylor and Jones in ?
A. 1927
B. 1928
C. 1929
D. 1930
Question 3
Chain transfer agents are sometimes called?
A. modifiers
B. regulators
C. Both A and B
D. None of the above
Question 4
What is the effect of polymer transfer on the polymer product formed by radical polymerization?
A. becomes less crystallizable
B. becomes mechanically weak
C. becomes less resistant to foreign agents
D. All of the above
Question 5
In solution polymerization, the solvent can act as a chain transfer agent.
A. Yes
B. No
C. Can be Yes Or No
D. Can not say
Question 6
How is the value of average degree of polymerization defined, considering the chain transfer mechanism?
A. ratio of total rate of production of chain ends to overall rate of polymerization
B. ratio of overall rate of polymerization to total rate of production of pairs of chain ends
C. ratio of overall rate of polymerization to rate of formation of pairs of chain ends by chain transfer
D. ratio of rate of formation of pairs of chain ends by chain transfer to overall rate of polymerization
Question 7
The chain transfer constant denoted by?
A. K
B. R
C. Z
D. C
Question 8
What is the slope of the linear plot of log [S] v/s log [M] in significant solvent transfer mechanism?
A. Ca
B. Cs
C. Ci
D. Cp
Question 9
Chain transfer to monomer is especially significant in ?
A. cationic addition polymerization
B. ring-opening polymerization
C. Both A and B
D. None of the above
Question 10
Chain transfer reactions are usually categorized by the nature of the molecule that reacts with the growing chain.
A. TRUE
B. FALSE
C. Can be true or false
D. Can not say