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 mechanism?

  • A
    secondary alcohol by $S_N1$
  • B
    tertiary alcohol by $S_N1$
  • C
    secondary alcohol by $S_N2$
  • D
    tertiary alcohol by $S_N2$

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