Distiction Between Alcohols And Phenols ALCOHOLS PHENOLS 1. Alcohols do not have any effect on litmus paper 1. Phenols change blue litmus red. 2. Alcohols do not produce any colour with ferric chloride solution. 2. Phenols produce violet, red or green colour with neutral ferric chloride solution. 3. Alcohols have no action with Br2 watermore..