Question

CHEMICAL TEST TO DISTINGUISH N-Propyl alcohol and isopropyl alcohol

Answer 1

Lucas reagent test can be used to distinguish N-propyl alcohol and Isopropyl alcohol.

• The ability of primary, secondary, and tertiary alcohol to get dissolved in water is studied using Lucas reagent.
• With help of this reagent different alcohol can also be distinguished as primary, secondary and tertiary alcohol reacts differently with Lucas reagent.
• The mixture of zinc chloride ($ZnCl_2$) and concentrated hydrochloric acid ($HCl$) is called Lucas reagent.
• When primary alcohol such as N-propyl alcohol is treated with Lucas reagent, no reaction occurs.
• On the other hand, secondary alcohol such as isopropyl alcohol reacts slowly with Lucas reagent upon heating and produces a white colored layer.

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