Multiple Choice QuestionsBakelite is obtained from phenol by reacting with:
acetaldehyde
acetal
formaldehyde
chlorobenzene
Nylon threads are made of
polyvinyl polymer
polyester polymer
polyamide polymer
polyethylene polymer
Bakelite is a
natural polymer
addition polymer
condensation polymer
homopolymer
C.
condensation polymer
(a) Natural polymers have natural origin.
(b) Addition polymers are obtained by the polymerisation of olefms and without the loss of small molecules such as H2O and NH3.
(c) Condensation polymers are obtained with the loss of small molecules such as H2O and NH3.
(d) Homopolymers contain monomer units of only one kind.
Since, bakelite is a polymer of formaldehyde (HCHO) and phenol (C6H5OH) formed with with the loss of water molecules, it is a synthetic condensation copolymer.
Which of the following monomers, gives synthetic rubber on polymerisation ?
CH2=CHCl
CCl2=CCl2
CH2=C(CH3)-CH=CH2
CH2=CCl-CH=CH2
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