Q9 · 2024 · Paper 1Unclassified1 mark
QUESTION 9
Polytetrafluorethene (PTFE) has a higher melting point than polypropene (PP) due to the
(A) C– F bonds being non-reactive.
(B) fluorine atoms forming stable C– F covalent bonds.
(C) dispersion forces between closely packed fluorocarbon chains.
(D) dipole–dipole interaction between fluorine and carbon atoms within the fluorocarbon chain.
WORKED SOLUTION
1 markAnswer C
OFFICIAL ANSWERC
QCAA awards 1 mark for selecting option C.
Correct option from the official QCAA answer key.