Question

49. Rank the following compounds according to increasing solubility in water.

I. CH₂-CH₂-CH₂-CH,
II. CH,-CH,-0-CH,-CH,
III. CH₂-CH₂-OH
a) I b) I c) III d) III e) No order is correct.

Answer 1

III, I, II

Step-by-step explanation:

The correct order is a) I, II, III.

Compounds I and II are both alkanes, which are non-polar compounds that do not dissolve well in water, which is a polar solvent. Alkanes are generally insoluble in water. Compound III is an alcohol, which is a polar compound that is more soluble in water than non-polar compounds like alkanes. Therefore, compound III is more soluble in water than compounds I and II.