CAIE A Level Chemistry 9701 · States of matter
Solid iodine, , is a simple molecular substance. It dissolves only slightly in water, but is much more soluble in cyclohexane, , a non-polar liquid.
Compare the solubility of iodine in water and in cyclohexane, and explain the difference in terms of the structure and bonding of the substances involved.
5 marks, so the mark scheme is looking for about 5 separate creditworthy points. Making the same point twice in different words earns it once.
Compare means: Give similarities or differences between two things, and say which side each point belongs to. Write each point as a pair, for example: A is X, whereas B is Y. Two separate descriptions rarely earn the marks.
Written by Markquill to follow the Cambridge International syllabus. Markquill is independent and is not affiliated with or endorsed by Cambridge International.