7
MCQ (Single Correct Answer)
is a polymer having monomer units ............ .
A
B
C
D
8
MCQ (Single Correct Answer)
Which of the following polymer can be formed by using the following monomer unit?
A
Nylon-6, 6
B
Nylon-2-nylon-6
C
Melamine polymer
D
Nylon-6
9
MCQ (Multiple Correct Answer)
Which of the following polymers, need atleast one diene monomer for their preparation?
A
Dacron
B
Buna-S
C
Neoprene
D
Novolac
10
MCQ (Multiple Correct Answer)
Which of the following are characteristics of thermosetting polymers?
A
Heavily branched cross linked polymers
B
Linear slightly branched long chain molecules
C
Become infusible on moulding so cannot be reused
D
Soften on heating and harden on cooling, can be reused
11
MCQ (Multiple Correct Answer)
Which of the following polymers are thermoplastic?
A
Teflon
B
Natural rubber
C
Neoprene
D
Polystyrene