JEE Main levelSingle correct optionDifficulty 2 of 3pl178
In a free radical polymerisation, adding a chain transfer agent such as CClX4 while all other conditions are kept the same will, in general, cause the average chain length of the polymer to
Aincrease
Bdecrease
Cremain unchanged because the number of radicals is unchanged
Dincrease because termination becomes slower
Answer: B
A chain transfer agent hands an atom to the growing radical, terminating that chain and starting a new, shorter one. The number of chains goes up while monomer consumed is the same, so the average chain length decreases.