Do you expect potassium iodide to be soluble in cyclohexane

Answer is: no, potassium iodide has low solubility in cyclohexane.

Potassium iodide (KI) is ionic compound, salt, that dissolve good in polar solvents (for example water), but it is very low soluble in non-polar solvents (in this example cyclohexane C₆H₁₂).

Cyclohexane has zero net polarity, because it is a symmetric molecule, with sp2 hybridization of carbon.