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The physical properties of polymers depend on which of the followings: 1. average molecular mass of...

The physical properties of polymers depend on which of the followings:

1. average molecular mass of a chain

2. the strength of intermolecular forces

3. the reaction temperature during synthesis

4. the degree of crystallinity

5. the reaction pressure

A) 1,2 and 4

B) 2,3 and 4

C) 1,2 and 5

D) 3,4 and 5

E) 2,4 and 5

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