Explain4 marksStandard
Explain, in terms of orbital overlap and bond types, why the bond between the two nitrogen atoms in is stronger and shorter than the bond between the two nitrogen atoms in .
CAIE A Level Chemistry 9701 · Chemical bonding
Chemical bonding: explain question
How this question is marked
4 marks, so the mark scheme is looking for about 4 separate creditworthy points. Making the same point twice in different words earns it once.
Explain means: Give the reasons or the mechanism: why or how something happens. Link each point to the next with because, so or which means. A list of facts with no links usually loses the reasoning marks.
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