In order to study saponification reaction, we first prepare 20% solution of sodium hydroxide. If we record the temperature of this solution just after adding sodium hydroxide flakes to water and also test its nature using litmus, it may be concluded that the process of making this solution is
Exothermic and the solution is alkaline
Endothermic and the solution is alkaline
Endothermic and the solution is acidic
Endothermic and the solution is acidic
A.
Exothermic and the solution is alkaline
The correct option is A.
A large amount of heat is evolved when sodium hydroxide is dissolved in water. Therefore, it is an exothermic reaction.
