Chemical Process
Vulcanisation of rubber

Increases its oil & solvent resistance
Decreases its tensile strength
Increases its ozone & oxygen reactivity
Converts its plasticity into elasticity

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Chemical Process
Shaving soaps are

Soft potassium soaps (potassium salt of fatty acid) with free stearic acid to give lather a lasting property
None of these
High free alkali soaps having excess of cane sugar and alcohol
Metalic soaps compounded with frothing agents

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