Hydroxyethanal, $$\(\mathrm{HOCH}_{2} \mathrm{CHO}\)$$, is heated under reflux with an excess of acidified $$\(\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}\)$$ until no further oxidation takes place. What is the skeletal formula of the organic product?
A.
B.
C.
D.
Exam No：9701_m24_qp_12 Year：2024 Question No：38
Answer:
B
Knowledge points:
20.1.1 describe addition polymerisation as exemplified by poly(ethene) and poly(chloroethene), PVC
20.1.2 deduce the repeat unit of an addition polymer obtained from a given monomer
20.1.3 identify the monomer(s) present in a given section of an addition polymer molecule
20.1.4 recognise the difficulty of the disposal of poly(alkene)s, i.e. non-biodegradability and harmful combustion products
Solution:
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