Polymer Technology - Practice Test

[#186] Which of the following polymers has the tendency of decomposing before melting?

(A) Polystyrene

(B) Nylon

(C) PVC

(D) None of these

Correct Answer

(C) PVC

[#187] Thermal pyrolysis of ethylene dichloride produces

(A) Trichlorethylene

(B) Vinyl chloride

(C) Ethanol amine

(D) Ethylene oxide

Correct Answer

(B) Vinyl chloride

[#188] The monomer of poly vinyl chloride (PVC) is

(A) Chloroethene

(B) Ethylene dichloride

(C) Ethyl chloride

(D) Chloroform

Correct Answer

(A) Chloroethene

[#189] Molecular weight of polymers are in the range of

(A) 10 - 10 3

(B) 10 2 - 10 7

(C) 10 7 - 10 9

(D) 10 9 - 10 11

Correct Answer

(B) 10 2 - 10 7

[#190] Vulcanisation of rubber does not increase its

(A) Elasticity

(B) Plasticity

(C) Ductility

(D) None of these

(E) Softness

(F) Oxidation resistance

(G) Weight & strength

(H) Elasticity & water solubility

Correct Answer

(B) Plasticity
(E) Softness

Polymer Technology - Study Mode

[#186] Which of the following polymers has the tendency of decomposing before melting?

Correct Answer

[#187] Thermal pyrolysis of ethylene dichloride produces

Correct Answer

[#188] The monomer of poly vinyl chloride (PVC) is

Correct Answer

[#189] Molecular weight of polymers are in the range of

Correct Answer

[#190] Vulcanisation of rubber does not increase its

Correct Answer