Attempted
Correct
UnAttempted
Wrong
DIRECTIONS : These are Assertion-Reason type questions. Each of these question contains two statements:Statement-1 (Assertion) and Statement-2 (Reason). Answer these question from the following four options.
Statement-1 :Teflon has high thermal stability and chemical inertness.
Statement-2 :Teflon is a thermoplastic.
Due to the presence of strong C–F bonds, teflon has high thermal stability and chemical inertness.
DIRECTIONS : These are Assertion-Reason type questions. Each of these question contains two statements:Statement-1 (Assertion) and Statement-2 (Reason). Answer these question from the following four options.
Statement-1 :The time of vulcanisation and temperature is increased by adding accelerators.
Statement-2 :By vulcanising, a material of high tensile strength can be obtained
The time of vulcanisation is reduced by adding accelerators and activators.