Monomer on heating with formaldehyde forms infusible solid mass called .
A
bakelite
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B
melamine
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C
adipic acid
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D
nevolac
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Solution
The correct option is D nevolac Bakelite is kind of phenol- formaldehyde polymer. Reaction of phenol and formaldehyde gives initial product nevolac (linear), when it is treated with formaldehyde it gives bakelite.