Question

Preparation of Bakelite proceeds via reactions:

• A. Electrophilic substitution and dehydration.
• B. Electrophilic addition and dehydration.
• C. Condensation and elimination
• D. Nucleophilic addition and dehydration

Answer 1

The correct option is C

Condensation and elimination

The correct answer is option C.

Explanation of correct answer :-

• Bakelite is a condense polymer of Phenol and Formaldehyde.
• When Phenol is made to react with Formaldehyde in the presence of excess dilute acid or alkali, it gives a resin called Bakelite.
• Formation of Bakelite follows two steps.

Step 1 :- Formation of o-Hydroxy methyl phenol

• In the first step, Formaldehyde reacts with Phenol in the presence of alkali or acid to give o-Hydroxy methyl phenol (Polymer).
• Formaldehyde attached to the ortho-position of the phenol ring.

Step 2 :- Formation of Bakelite by condensation.

• In second step, o-Hydroxy methyl phenol condense together to form a resin called Bakelite.
• Bakelite is condense polymer formed through linkage of o-Hydroxy methyl phenol.