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Which of the following is not a characteristic of natural rubber?

(a) Cheap

(b) High strength

(c) High hysteresis

(d) Abrasion and tear resistant

This question was posed to me by my college director while I was bunking the class.

I need to ask this question from Types of Rubbers topic in portion Glass & Elastomers of Engineering Material & Metallurgy

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Correct choice is (c) High hysteresis

To explain: Natural rubber is processed from a liquid known as rubber latex. It has high strength and possesses good tear and abrasion resistance. However, it is easily attacked by solvents and gasoline, and also possesses low hysteresis.

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