Question:medium

What are the monomers of Bakelite?

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Remember that thermosetting plastics like Bakelite are formed from condensation reactions and are not recyclable due to their strong cross-linked structure.
Updated On: Jan 13, 2026
  • Phenol and urea
  • Phenol and formaldehyde
  • Urea and formaldehyde
  • Phenol and acetaldehyde
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The Correct Option is B

Solution and Explanation

Bakelite, an early synthetic thermosetting polymer, is produced via the condensation reaction of two monomers: Phenol (\( \mathrm{C_6H_5OH} \)) and Formaldehyde (\( \mathrm{HCHO} \)). This process yields a robust, cross-linked phenol-formaldehyde network, forming the durable plastic known as Bakelite.

Key Points: Renowned for its high mechanical strength and heat resistance, Bakelite finds extensive application in electrical insulators and household goods. The monomers, phenol and formaldehyde, combine through a condensation reaction to create a cross-linked polymer structure.

 Therefore, the constituent monomers of Bakelite are Phenol and Formaldehyde.

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