22817.Among cellulose, poly (vinyl chloride), nylon and natural rubber, the polymer in which intermolecular forces of attraction are weakest is
Nylon
Poly (vinyl chloride)
Cellulose
Natural rubber
22819.Which of the following statements is not correct?
Caprolactam is the monomer of nylon–6
Terylene is a polyester polymer
Phenol formaldehyde resin in known as bakelite
The monomer of natural rubber is butadiene
22820.The catalyst used for olefin polymerization is
Ziegler–Natta catalyst
Wilkinson catalyst
Raney nickel catalyst
Merrifield resin
22823.Which of the following statements is false?
The repeat unit in natural rubber is isoprene.
Both starch and cellulose are polymers of glucose.
Artificial silk is derived from cellulose.
Nylon–66 is an example of elastomer.
22827.The polymer containing strong inter molecular forces e.g. hydrogen bonding is
Polystyrene
Natural rubber
Teflon
Nylon 6, 6
22828.Structure of some common polymers are given. Which one is not correctly presented?
Nylon 66 [— NH(CH2 )6NHCO(CH2)4 — CO —]2
Teflon (— CF2 — CF2 — )n
Neoprene 
Terylene 
22831.Arrange the following in increasing order of their intermolecular forces: Nylon 6,6 (I), Buna–S (II), Polythene (III).
II, I, III
III, II, I
I, II, III
II, III, I
22832.Bakelite is a product of the reaction between
formaldehyde and NaOH
aniline and urea
phenol and methanal
phenol and chloroform