CAIE A Level Chemistry 9701 · Nitrogen and sulfur
Nitrogen gas and ammonia both contain nitrogen atoms, yet they behave very differently as reagents. Compare the reactivity of nitrogen gas with that of ammonia, and explain the difference in terms of the bonding and polarity of the two molecules.
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.