An unknown alcohol is treated with the "Lucas reagent" to determine whether the alcohol is primary, secondary or tertiary. Which alcohol reacts fastest and by what mechanims :

An unknown alcohol is treated with the "Lucas reagent" to determine wh

1.	An unknown alcohol is treated with the "Lucas reagent" to determine whether the alcohol is primary, secondary or tertiary. Which alcohol reacts fastest and by what mechanims :
Answer» secondary alcohol by `S_(N^(2))` teritary alcohol by `S_(N^(2))` secondary alcohol by `S_(N^(1))` teritary alcohol by `S_(N^(1))` Solution :In Lucas test, a `3^(@)` alcohol REACT fastest. The MECHANISM followed is `S_(N^(1))`. It is DUE to the FORMATION of stable CARBOCATION.