
In the following reactions, P, Q, R, and S are the major products.
The correct statement(s) about P, Q, R, and S is(are)
P and Q are monomers of polymers dacron and glyptal, respectively.
P, Q, and R are dicarboxylic acids.
Compounds Q and R are the same.
R does not undergo aldol condensation and S does not undergo Cannizzaro reaction.

