Describe7 marksChallenge
Describe the shapes and bond angles of the following molecules and ions, explaining your answers using VSEPR theory.
(a) (b) (c) (d)
CAIE A Level Chemistry 9701 · Chemical bonding
Chemical bonding: describe question
How this question is marked
7 marks, so the mark scheme is looking for about 7 separate creditworthy points. Making the same point twice in different words earns it once.
Describe means: Say what happens or what something is like, in order and with detail. You are not being asked why. If there is data, quote it: name the trend, then give figures with units at the points where it changes.
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