Bristles of tooth brushes are made of_______________?
Bristles of tooth brushes are made of_______________?
A. Nylon-6
B. Nylon-66
C. Polystyrene
D. PVC
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Condensation polymerisation of formaldehyde with _____________ does not produce phenolic resin?
Condensation polymerisation of formaldehyde with _____________ does not produce phenolic resin?A. Resorcinol
B. Phenol
C. Para-cresol
D. MelamineWhich of the following is not a condensation polymer ?
Which of the following is not a condensation polymer ?A. Bakelite
B. Melamine polymer
C. Poly-methyl-methacrylate (PMMA)
D. None of theseWhich of the following polymers does not belong to the class of Polyacrylate polymer ?
Which of the following polymers does not belong to the class of Polyacrylate polymer ?A. PMMA
B. Polyacrylonitrile
C. Poly Ethyl acrylate
D. None of thesePhenol formaldehyde __________________?
Phenol formaldehyde __________________?A. Employs addition polymerisation
B. Employs condensation polymerisation
C. Is a monomer
D. Is an abrasive materialHot drink (e.g, tea) cups are usually made of
Question: Hot drink (e.g, tea) cups are usually made of
[A].polystyrene [B].
polythene [C].
polypropylene [D].
PVC Answer: Option A
Explanation:
No answer description available for this question.
Neoprene is rendered non-inflammable, because of_____________________?
Neoprene is rendered non-inflammable, because of_____________________?A. Its cross-linked structure
B. Its linear chain structure
C. The presence of chlorine atoms in its monomer
D. The absence of chlorine atoms in its monomer