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प्रश्न
What is the role of Sulphur in the vulcanization of rubber?
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उत्तर
Sulfur is used in vulcanization to produce cross-links between two polymer chains to produce more tensile strength, elasticity, and resistance to abrasion.
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संबंधित प्रश्न
What is natural rubber?
(A) Cis-1,4-polyisoprene
(B) Neoprene
(C) Trans-1,4-polyisoprene
(D) Butyl rubber
What is the role of sulphur in the vulcanisation of rubber?
Discuss the main purpose of vulcanisation of rubber.
Write names and chemical formulae of monomers used in preparing Buna-N.
Write the formulae of the raw materials used for preparation of Buna-S
Match materials given in Column I with the polymers given in Column II.
| Column I | Column II |
| (i) Natural rubber latex | (a) Nylon |
| (ii) Wood laminates | (b) Neoprene |
| (iii) Ropes and fibres | (c) Dacron |
| (iv) Polyester fabric | (d) Melamine formaldehyde resins |
| (v) Synthetic rubber | (e) Urea-formaldehyde resins |
| (vi) Unbreakable crockery | (f) cis-polyisoprene |
The polymer of natural rubber is:-
Which of the following is correct regarding the drawbacks of raw rubber.
In vulcanization of rubber:
Which amongst the following molecules on polymerization produces neoprene?
