What is chemical equation ethyl iodide plus aq.KOH?

The chemical equation for the reaction between ethyl iodide and aqueous potassium hydroxide is:

C2H5I + KOH → C2H5OH + KI

This reaction involves the substitution of the iodine in ethyl iodide with hydroxide from KOH, resulting in the formation of ethanol and potassium iodide.