Polymer Technology In a cross linked polymer, the monomeric units are linked together to constitute a three dimensional network. Which of the following is a cross-linked polymer? Bakelite (phenol formaldehyde) Polyester Polythene Nylon-6 Bakelite (phenol formaldehyde) Polyester Polythene Nylon-6 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Flexible foam (for mattresses) are usually made of Polyamides Silicone rubber PVC Polyurethanes Polyamides Silicone rubber PVC Polyurethanes ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Alkyd resin can not be used for making Paint & varnish Film forming materials Fibres Plasticiser Paint & varnish Film forming materials Fibres Plasticiser ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In nylon-6, the number 6 represents the total number of Hydrogen atoms in the ring Nitrogen atoms in the ring Carbon atoms in the linear polymer chain Carbon atoms in the ring Hydrogen atoms in the ring Nitrogen atoms in the ring Carbon atoms in the linear polymer chain Carbon atoms in the ring ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polymers are classified into four categories namely thermosetting, thermoplastic, elastomer and fibre depending upon their Magnitude of intermolecular forces Polymerisation mechanism Molecular sizes Resistance to heat Magnitude of intermolecular forces Polymerisation mechanism Molecular sizes Resistance to heat ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Catalyst used in the production of high density polythene by low pressure Ziegler process is Molybdenum Platinum Aluminium triethyl activated with TiCl₄ Nickel Molybdenum Platinum Aluminium triethyl activated with TiCl₄ Nickel ANSWER DOWNLOAD EXAMIANS APP
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