4.7.6b Natural Polymers (Structured Questions)


Question 3:
Diagram 3 shows an experiment to compare the elasticity of a natural rubber, (Rubber P) with a natural rubber that has been soaked in sulphur monochloride solution, (Rubber Q).


(a) State one hypothesis for this experiment. [1 mark]

(b) State the variables in this experiment.
(i) Controlled variable [1 mark]
(ii) Manipulated variable [1 mark]

(c) Based on this experiment, which rubber is more elastic? [1 mark]

(d) Mark ( √ ) the objects which are made of natural rubber that has been processed as in rubber Q. [1 mark]



Answer:
(a)
The elasticity of natural rubber that has been soaked in sulphur monochloride solution, (Rubber Q) is higher than the elasticity of natural rubber.

(b)(i)
The mass of the weight, length of the natural rubber strip.

(b)(ii)
Natural rubber soaked or not soaked in sulphur monochloride.

(c)
Natural rubber that has been soaked in sulphur monochloride solution or rubber Q is more elastic.

(d)




Leave a Comment