MHT CET 2026 Chemistry question

Not in JEE Main or NEET syllabus

Which properties from following is improved by vulcanization of rubber?

(A)Plasticity
(B)Solubility in water
(C)Tensile strengthCorrect
(D)Electrical conductivity

Answer: (C)

Solution

Vulcanization is the heating of natural rubber with sulphur (3-5%) in the presence of an accelerator such as ZnO. Sulphur forms cross-links (disulphide bridges) between the polyisoprene chains at the double bond sites. This makes the rubber harder, more elastic and stronger, increasing its tensile

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Question ID VK-098652