Polymer Technology
Condensation polymerisation of __________ produces bakelite.

Phenol & formaldehyde
Phenol & acetaldehyde
Propylene
Urea & formaldehyde

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Polymer Technology
Identify the group in which all the polymers mentioned can be used to make fibres.

Cellulose derivatives, Polyisoprene, Polyethylene
Cellulose derivatives, Polyamides, Polyurathane
Polypropylene, Poly vinyl chloride, Silicon
Butadiene copolymers, Polyamides, Urea aldehyde

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