The compound whose dissolution is exothermic in the list is NaOH.
An exothermic reaction is one in which heat is gven out in the process. In an exothermic reaction, the reaction vessel feels hot after the reaction is complete.
The table is not shown here. However, we know that the dissolution of NaOH in water is an exothermic process hence the answer is option C.
Learn more about exothermic reaction: https://brainly.com/question/14969584