| Q.106 | Which of the following is NOT true for the rubber? | |
| Ans | 1. In the manufacture of tyre rubber, 25% of sulphur is used as a cross linking agent. | |
| 2. Natural rubber is soluble in non-polar solvents and is non-resistant to attach by oxidizing agents. | ||
| 3. Natural rubber becomes soft at high temperature and brittle at low temperature. | ||
| 4. The properties of the rubber are improved by heating it with sulphur and appropriate additive at a high temperature. |
Correct Ans Provided: 1