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Question

Heating rubber with sulphur is known as:

A
galvanization
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B
bessemerisation
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C
vulcanization
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D
sulphonation
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Solution

The correct option is C vulcanization
The formation of vulcanised rubber-
To improve these physical properties,
  • water repelent
  • Less water absorption
  • Resist for oxidising agents
  • Strength
a process of vulcanisation is carried out. This process consists of heating a mixture of raw rubber with sulphur and an appropriate additive at a temperature range between 373 K to 415 K.On vulcanisation, sulphur forms cross links at the reactive sites of double bonds and thus the rubber gets stiffened, The correct option is [C].

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