Polymer Technology - Study Mode

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[#111] The conversion of caprolactum in the above case is about __________ percent.

(A) 25

(B) 50

(C) 70

(D) 90

Correct Answer

(D) 90

[#112] Polymethyl methacrylate (PMMA) which is also known as perspex and is produced by bulk polymerisation of methyl methacrylate is not a __________ polymer.

(A) Thermoplastic

(B) Thermosetting

(C) Linear

(D) Glass like transparent

Correct Answer

(B) Thermosetting

[#113] The monomer of natural rubber is

(A) DMT

(B) Isoprene

(C) 2 methyl-1-propene

(D) Both B and C

Correct Answer

(D) Both B and C

[#114] Caprolactum, a raw material for the manufacture of nylon-6, is produced from

(A) Phenol

(B) Naphthalene

(C) Benzene

(D) Pyridine

Correct Answer

(C) Benzene

[#115] Out of all the elastomers, natural rubber has the longest elongation range & flexibility of the order of __________ percent.

(A) 1-1000

(B) 1000-1500

(C) 1500-2000

(D) 2000-2500

Correct Answer

(A) 1-1000