if a polymer contains 200 monomers, how many water molecules would have been removed to make this polymer?

Question

99?
1?
200?
199?

Answer 1

The answer to this question is different for different polymerizations.
For additive polymerization such as for polystyrene, the answer is zero.
For condensation polymerization, the answer could be 199 or 200, depending on if the polymer is in linear or a ring shape (2-ends react to remove another water molecule).

Answer 2

Assuming that it's a polymer that can only link at the ends, then the answer would be 199, as it's 199 chain links in a 200-chain polymer.