19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Teflon, styrene and neoprene are all
Assertion: Most of the synthetic polymers are not biodegradable. Reason: Polymerisation process induces toxic character in organic molecules.
Assertion: Bakelite is hard and has high melting point. Reason: Interparticle forces of attraction in it are due to H-bonding.
Which one of the following is a chain growth polymer?
The formation of which of the following polymers involves hydrolysis reaction?
Acrilon is a hard, horny and a high melting material. Which of the following represents its structure ? (a) (b) (c) (d)
Assertion: Teflon has high thermal stability and chemical inertness. Reason: Teflon is a thermosetting polymer.
The monomer of the polymer is (a)
Which one of the following monomers gives the polymer neoprene on polymerization? (a) (b) (c) (d)
Assertion: Network polymers are thermosetting. Reason: Network polymers have high molecular mass.
Assertion: Polybutadiene is an example of chain growth polymer. Reason: Copolymerization of butadiene and styrene gives Buna-S.
Assertion: 1, 3-Butadiene is the monomer for natural rubber. Reason: Natural rubber is formed through anionic addition polymerisation.
The monomer unit of given compound is:
Assertion: Olefinic monomers undergo addition polymerisation. Reason: Polymerisation of vinyl chloride is initiated by peroxides/persulphates.
Bakelite is obtained from phenol by reacting with
CF₂ = CF₂ is a monomer of
Assertion: Polytetrafluoroethene is used in making non-stick cookwares Reason: Fluorine has highest electronegativity.
Nylon threads are made up of
Which of the following is a polyamide?
Which of the following is fully fluorinated polymer?
The polymer containing strong intermolecular forces, i.e. hydrogen bonding, is
Which one is classified as a condensation polymer?
Assertion: Glypal is obtained by condensation polymerization of ethylene glycol and terephthalic acid. Reason: Glyptal is used in the manufacture of fabrics.
Assertion: Bakelite is hard and has high melting point. Reason: Interparticle forces of attraction in it are due to H-bonding.
Chloroprene is the monomer unit in: