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The condensation product of phenol and formaldehyde is known as _________

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The condensation product of phenol and formaldehyde is known as _________

(a) Phenolic resins

(b) Urea formaldehyde resins

(c) Polyvinyl chloride

(d) Polystyrene

The question was posed to me in an interview for job.

Question is from Thermosetting Polymers topic in portion Polymers of Engineering Chemistry I

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Right choice is (a) Phenolic resins

For explanation I would say: The condensation product of phenol and formaldehyde is known as phenolic resins or phenoplasts or PF resins. Phenoplasts include the expanded plastics obtained by introducing a blowing agent (foaming agent).

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