Phenols

Question 1

Chemical properties ?

Answer 1

I. Reaction on –OH group
II. Electrophilic Substitution Reaction

Question 2

I. Reaction on –OH group

Answer 2

1. Acidic Nature
2. Action with zinc dust
3. Oxidation
4. Reaction with neutral ferric chloride

Question 3

1. Acid natural

Answer 3

Can be confirmed from following test:
a) It turns blue litmus red
b) Phenol dissolves in alkali
c) Phenol ionizes to give H+ ions
C6H5—OH —– C6H5–O-+H+

Question 4

2. Action with zinc dust

Answer 4

Phenol—->heated (with zinc dust)—–>benzene

Question 5

3. Oxidation

Answer 5

Phenol—–>oxidation (with chromic acid (Na2Cr2O7) ) —–> benzoquinone

Question 6

4. Reaction with neutral ferric chloride

Answer 6

Phenol —->neutral ferric chloride —–>violet colour complex
3C6H5 OH + FeCl3 ——> (C6H5O)3 Fe + 3Hcl