| Direction: Assertion- Reaction type. Each of these contains tow statements: Statement I (Assertion), Statement II (Reason). Each of these questions also has four alternative choices, only one of which is correct. You have to select the correct choices from the codes (a), (b), (c) and (d) given below: |
| Statement I: In vulcanisation of rubber, sulphur cross links are introduced. |
| Statement II: Vulcanisation is a free radical initiated chain reaction. |
A) Statement I is true; Statement II is true; Statement II is not a correct explanation for Statement I,
B) Statement I is true; Statement II is false.
C) Statement I is false; Statement II is true.
D) Statement I is true; Statement II is true; Statements is the correct explanation for Statement I.
Correct Answer: A
Solution :
Vulcanisation is a process of treating natural rubber with sulphur or some compounds of ' sulphur under heat so as to modify its properties. This cross linking give mechanical strength to the rubber.
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