Q9 · 2021 · Paper 1Unclassified1 mark
QUESTION 9
The boiling points of methane, ethane and propane increase as the lengths of the carbon chains increase because more energy is required to overcome the
(A) intramolecular hydrogen bonds.
(B) intermolecular hydrogen bonds.
(C) intramolecular dispersion forces.
(D) intermolecular dispersion forces.
WORKED SOLUTION
1 markAnswer D
OFFICIAL ANSWERD
QCAA awards 1 mark for selecting option D.
Correct option from the official QCAA answer key.