explain 15 4 pg 437 question I have gone through meritnation answer so don't post same solution I could not - Chemistry - Polymers

Question

explain 15 4 pg 437 question
I have gone through meritnation answer so don't post same solution
I could not understand that

'binding sites that is/are present in that monomer ' what does this
mean?
also I could not understand its given example?

Akanksha · Accepted Answer

The functionality of a monomer is the number of binding sites that is/are present in that monomer.
For example, the functionality of monomers such as ethene is one because there is only one binding site in it.

Functionality of 1, 3-butadiene is 2 as there is 2 binding sites as shown below:

explain 15.4 pg 437 question I have gone through meritnation answer so don't post same solution I could not understand that 'binding sites that is/are present in that monomer.' what does this mean? also I could not understand its given example?

explain 15.4 pg 437 question
I have gone through meritnation answer so don't post same solution I could not understand that

'binding sites that is/are present in that monomer.' what does this mean?
also I could not understand its given example?