Which of the following statements are correct for phenol?
I. Phenol is more acidic than alcohol
II. Phenol is used in the production of melamine plastic
III. Phenol gives violet colour with neutral ferric chloride solution
IV. Phenol when heated with acetyl chloride gives phenetole
I and III
Phenol is not used in the production of melamine plastic and acetyl chloride is no used in the preparation of phenetole. Therefore, statement (I) and (III) are correct, i.e., option (b) is correct.