Exercise 05: Phenol

Question 1

1. Place 1 mL of sample in a test tube.
2. To the solution add an excess of _____ and shake.

Answer 1

Bromine Water Test
2. Strong Bromine Water

Question 2

1. Place 1 mL of sample in a test tube.
2. Add to the solution _____ drop by drop until there is a color change. Add to this mixture dilute HCI or sulfuric acid.
3. Observe the change in color. (Difference from salicylic acid).

Answer 2

Ferric Chloride Test
2. Very Dilute Ferric Chloride

Question 3

1. Place 1 mL of sample in a test tube.
2. Add few drops of _____, then 2-4 drops of freshly prepared sodium hypochlorite solution.
3. Warm gently.
4. Observe the change in color.

Answer 3

Hypochlorite Test
2. Ammonium Hydroxide

Question 4

1. Place 1 mL of sample in a test tube.
2. Add 2 mL of conc. sulfuric acid.
3. Heat
4. Add 10 mL of water in the cooled solution and enough KOH to make it alkaline.
5. Observe the result.

Answer 4

Melzer’s Benzaldehyde Test

Question 5

1. Place 1 mL of sample in a test tube.
2. Add to the solution few drops of Millon’s reagent and heat.

Answer 5

Millon’s Test (Plugge’s Reaction)