Question

Bakelite is a______

• A. Resin in alcohol
• B. Phenol-acetaldehyde Resin
• C. Phenol-formaldehyde Resin
• D. Phenol-propionaldehyde Resin

Answer 1

The correct option is C

Phenol-formaldehyde Resin

The correct option is (C):

Explanation for the correct option:

Phenol-formaldehyde Resin:

1. Bakelite is actually a thermosetting polymer of the Phenol-formaldehyde resin which is formed by the condensation reaction of the Phenol with the Formaldehyde.
2. So during the formation of Bakelite, in the first step Phenol as well as the formaldehyde are heated in the presence of the catalyst like the Hydrochloric acid or Ammonia.
3. So further from the heating, a liquid condensation is formed that is known as Bakelite.
4. After this, when we will further heat it, then it will become partially soluble and so can be softened again.
5. On heating this in the presence of high pressure or high temperature, extremely hard Bakelite can be formed.
6. This Bakelite is the poor conductor of heat and electricity so can be used in the handles of utensils, electric wires etc.
7. Reaction:

Therefore, the correct option is (C): Phenol-formaldehyde Resin.