The correct option is
C Phenol-formaldehyde Resin
The correct option is (C):
Explanation for the correct option:
Phenol-formaldehyde Resin:
- Bakelite is actually a thermosetting polymer of the Phenol-formaldehyde resin which is formed by the condensation reaction of the Phenol with the Formaldehyde.
- 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.
- So further from the heating, a liquid condensation is formed that is known as Bakelite.
- After this, when we will further heat it, then it will become partially soluble and so can be softened again.
- On heating this in the presence of high pressure or high temperature, extremely hard Bakelite can be formed.
- This Bakelite is the poor conductor of heat and electricity so can be used in the handles of utensils, electric wires etc.
- Reaction:
![](https://ucda0c2931d68fec8be158bafb9f.previews.dropboxusercontent.com/p/thumb/ABqT7KZSh0j9xVpi6xSefRAISW9JYXzlvipGs-HC_3sE3j_yFEw_Dj9jeOQAD8WdByvLrZr81PZ8WJP6tQY1nu2OQ6k6DKuIukpkEEM6UTN-jxIlURaQOalFezBstMeaWtITeCjd2WOGh68dWVtWsdW2ClcoPljLW_658WL6G_84n8117BJ9hhES9LKe5ZufbKnkHR2V6md_4BgUK899iTFT5KfNZttCDEE30Tvg1wgJ_euioTAXVPnqsDuiMN8FayH04QUowEzLU8yiVBOv2zkLZj84dYOlpiGXmvYihAfxKi29J4dKFV9oIYjQRFR3InzrJjION6CKdmFvewz8W2EBBk5DnIPYBiyJeQp7yCrmzBQ6M5jEhSUi9eznsYM6tYk/p.jpeg)
Therefore, the correct option is (C): Phenol-formaldehyde Resin.