JEE PYQ: Biomolecules And Polymers Question 42
Question 42 - 2019 (09 Apr Shift 2)
Which of the following compounds is a constituent of the polymer $-[\text{HN} - \overset{\text{O}}{\text{C}} - \text{NH} - \text{CH}_2]-_n$?
(1) N-Methyl urea
(2) Formaldehyde
(3) Methylamine
(4) Ammonia
Show Answer
Answer: (2)
Solution
The polymer $-[\text{HN}-\overset{\text{O}}{\text{C}}-\text{NH}-\text{CH}_2]-_n$ is urea-formaldehyde resin. Its monomers are urea and formaldehyde.