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The conversion of pi-bond to sigma bond during the chain propagation releases the energy of _________ K.cal/mole.

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The conversion of pi-bond to sigma bond during the chain propagation releases the energy of _________ K.cal/mole.

(a) 10

(b) 30

(c) 40

(d) 20

The question was posed to me in homework.

The question is from Mechanism of Polymerization in division High Polymers and Plastics of Applied Chemistry

1 Answer

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Best answer
Right answer is (d) 20

To explain I would say: The conversion of the pi-bond into the sigma bond during the chain polymerisation releases the energy of the 20K.cal/mole. An initiator is needed to start the polymerisation reaction.

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