The monomer of the polymer
(a) The monomer of the polymer is because it shows cationic polymerisation.
Which can absorb over 90% of its own mass of water and does not stick to wound ?
(b) Gun cotton
(a) The characteristic of rayon.
(a) linear polymers
(b) soften or melt on heating
(c) molten polymer can be moulded in desired shape
(d) all of the above
(d) These are characteristics of thermoplastics.
is a copolymer because polymers whose repeating structural units are derived form two or more types of monomer units are called copolymer
Which of the following natural products is not a polymer ?
(c) ATP is a monomer molecule
Synthetic human hair wings are made from a copolymer of vinyl chloride and acrylonitrile and is called:
(d) Dynel is a copolymer of vinyl chloride and acrylonitrile.
Nylon-66 is a polyamide obtained by the reaction of
(b) The monometer units of nylon-66 are obtained by the reaction of hexamethylene diamine and adipic acid.
Nylon-66 contain polyamide bind and show condensation.
Which one is protein fibre ?
(c) Silk wool are protein fibre. Cotton rayon is cellulose fibre,
terylene is polyester fibre.
Bakelite is prepared by the reaction between
(a) urea and formaldehyde
(b) ethylene glycol
(c) phenol and formaldehyde
(d) tetramethylene glycol
(c) Bakelite is a polymer obtained by the condensation reaction between phenol and formaldehyde. It is a condensation polymer and basic unit of Bakelite is Novolac.
Terylene is a condensation polymer of ethylene glycol and
(a) benzoic acid
(b) phthalic acid
(c) salicylic acid
(d) terephthalic acid
(d) Terylene is a condensation polymer of ethylene glycol and terephthalic acid and also called polyster