Multiple choice

Match the column – I (additives for plastics) with column – II (its function) and select the correct option.

 
Column – I
Column – I
P. Sulphur 1. Vulcanizing activator
Q. Chlorendic acid 2. Vulcanisation agent
R. Polyisobutylene 3. Plasticizer
S. Zinc oxide 4. Flame retardant

  1. P - 1, Q - 2, R - 3, S - 4

  2. P - 2, Q - 4, R - 3, S - 1

  3. P - 2, Q - 3, R - 4, S - 1

  4. P - 3, Q - 4, R - 1, S - 2

  5. P - 4, Q - 1, R - 2, S - 3
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Elemental sulphur is the most widely used vulcanisation agent in the rubber industry. Polyisobutylene is a liquid oligomer widely used as plasticizer for high-molecular weight polymers, such as polyethylene. Chlorendic acid is used as an intermediate in synthesis of unsaturated flame-retardant polyester resins and plasticizers, and as a finishing flame-retardant treatment for wool. Zinc oxide (ZnO) is the most known vulcanizing activator.

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