What is likely to happen to rats who drink a flavored water solution and are then shocked?

Anything can happen

Explanation:

On this note, anything can happen to the rat, because we dont know flavor is in the water solution, it could be a wrong flavor that wont work with the body system of the rat such that when it got shocked, there is a tendency that it could die due to the unexpected shock

Secondly, we dont know what type of shock, is it electrical shock or shock due to unexpected reaction. All this will have effect but the method of shock has to be defined for us to give a potential event that can happen in such scenario.

So on this bases, anything can happen to the rat because some factors are not defined