GUJCET 2011 Chemistry Solved Paper

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Question : 35 of 40

Marks: +1, -0

Natural rubber is not used in making footwear for polar regions because

Natural rubber becomes soft at temperature lower than 10∘C.
Natural rubber becomes brittle at temperature lower than 10∘C.
Natural rubber melts at temperature lower than 10∘C.
Natural rubber becomes stronger at temperature lower than 10∘C.

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