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QUESTION 2.24

Based on solute - solvent interactions, arrange the below given in order of increasing solubility in n - octane and explain.
Cyclohexane, KCl, CH3OH, CH3CN


Solution

(i) Cyclohexane and n-octane both are non-polar.
So, they mix completely in all proportions.

(ii) KCl is an ionic compound, but n - octane is non-polar.
So, KCl does not dissolve in n-ocatne.

(iii) CH3OH and CH3CN both are polar but CH3CN is less polar than CH3OH. As the solvent is non-polar, CH3CN will dissolve more than CH3OH in n-octane.

Order of solubility is KCl<CH3OH<CH3CN<cyclohexane.


Chemistry
NCERT Textbook
Standard XII

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