Chemistry · May / June 2022 · Paper 42 · Question 6
0620
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This question is about polymers.
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6(a)(i)[1]
3
6(a)(ii)[2]
diagram of dioic acid showing two fully displayed carboxylic acid groups on unshaded block
diagram of diol showing two fully displayed hydroxyl groups on shaded block
6(a)(iii)[1]
polyester
6(b)[1]
one
6(c)(i)[3]
any hydrocarbon with one C=C bond (with both C atoms having 4 bonds) (1)
structure of but-2-ene (1)
but-2-ene
6(c)(ii)[1]
cracking
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