Question

‘Bounding Putty’ is a toy-like substance that is in a state between a liquid and a solid. If it is thrown on the wall, it bounces back. But if it is place on the place on the table, it collapses into a thick liquid, it is made of:
A. Silicon rubber
B. Tyre rubber
C. Polythene
D. Fiberglass treated with rubber

Answer 1

Hint: Putty is a very moldable and stretchable material that can be used in various projects like crafting, housing, and fixing different objects. Because of its soft texture, it is easily applicable in plumbing as well because it does not harden over time and can be removed whenever required. Some putties are also used in toys.

Complete answer:
Bonding putty is made up of silicone polymer, boric acid and some other chemicals along with powdered filler like clay and calcium carbonate and dry pigments to produce color or add glittering features.

Hence, option (A) is correct.

Note:
Bounding putty is stretchable and can be molded in all sorts of shapes but it breaks when it is being pulled quickly. It has the feature of bouncing back like a ball, but under high impact conditions, it collapses. It is because the bouncing putty lies in the cross-linking.
Thermal motion in the molecule can break the linkage which allows it to slide to a new position along the chains and re-attaches. When the cross-linking bonds are temporarily broken, a pair of chains can move past each other. When deformation occurs, the putty is able to be stretched on a time scale that is slower than the cross-linking bond, break-and-connect rate. The material acts as a rigid substance when it is deformed too quickly because there is no time for the cross-linking to get reconnected. If the deformation is somewhat faster than the breaking-connecting rate, the chains will elastically snap back, giving them the bouncing character.