JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Phenol-formaldehyde resins are obtained from phenol and formaldehyde by

(A)Addition polymerization
(B)Condensation polymerization
(C)Copolymerization
(D)Both (b) and (c)Correct

Answer: (D)

Solution

Phenol and formaldehyde react with loss of water (condensation) to build up the resin, and since two chemically different monomers are involved, this is also a copolymerization. So it is correctly

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Question ID VK-151416