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MCQs

Total Questions : 1113 | Page 10 of 112 pages
Question 91. Rain coats are made of
  1.    Neoprene
  2.    PVC
  3.    Polyurathane
  4.    SBR
 Discuss Question
Answer: Option B. -> PVC
Question 92. Rayon is a __________ fibre.
  1.    Cellulosic
  2.    Polyamide
  3.    Polyester
  4.    Natural
 Discuss Question
Answer: Option A. -> Cellulosic
Question 93. Phosphates (e.g., triceresyl, tributyl, tetrabutyl, tripheyl etc.) are added to polymers to act as
  1.    Hardeners
  2.    Anti-shrinkage agents
  3.    Plasticisers
  4.    Transparency improver
 Discuss Question
Answer: Option C. -> Plasticisers
Question 94. In condensation polymerisation as compared to addition polymerisation
  1.    The monomers are unsaturated compounds
  2.    No co-product is lost
  3.    The monomers contain two functional groups
  4.    Generally only one monomer is involved
 Discuss Question
Answer: Option C. -> The monomers contain two functional groups
Question 95. Molecular weight of a polymer is equal to the molecular weight of the repeat unit multiplied by the degree of polymerisation. What is the molecular weight of poly vinyl chloride (PVC), if its degree of polymerisation is 800?
  1.    50000
  2.    51600
  3.    49200
  4.    50800
 Discuss Question
Answer: Option A. -> 50000
Question 96. Terylene is a/an
  1.    Addition polymer
  2.    Poly amide
  3.    Homopolymer
  4.    None of these
 Discuss Question
Answer: Option D. -> None of these
Question 97. Styrene butadiene rubber (SBR) is
  1.    A natural rubber
  2.    Another name of silicone rubber
  3.    A synthetic polymer
  4.    A synthetic monomer
 Discuss Question
Answer: Option C. -> A synthetic polymer
Question 98. In nylon-6, the number 6 represents the total number of
  1.    Carbon atoms in the ring
  2.    Carbon atoms in the linear polymer chain
  3.    Nitrogen atoms in the ring
  4.    Hydrogen atoms in the ring
 Discuss Question
Answer: Option B. -> Carbon atoms in the linear polymer chain
Question 99. Alkyd resin e.g., glyptal resin formed by phthalic anhydride and glycerene is not used
  1.    For surface coating of automobiles & air crafts
  2.    For fibre making
  3.    As plasticiser for PVC & nitrocellulose
  4.    For film forming materials
 Discuss Question
Answer: Option B. -> For fibre making
Question 100. Adipic acid is an intermediate in the manufacture of
  1.    Perspex
  2.    Nylon-66
  3.    Polystyrene
  4.    Bakelite
 Discuss Question
Answer: Option B. -> Nylon-66

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