Question
Read the following statements.
(i) Rubber latex is a colloidal dispersion of rubber in water.
(ii) Natural rubber is a cis –1, 4–polyisoprene having elastic properties due to coiled structure and weak van der Waal’s forces.
(iii) Vulcanisation of natural rubber with sulphur and an appropriate additive is carried out above 415K.
(iv) In the manufacture of tyre rubber, 5% of sulphur is used as a cross-linking agent.
(v) Synthetic rubbers are homopolymers.
Which of the following is the correct code for the statements above?
