Lewis Structures Quiz

LEWIS (e-dot) STRUCTURES QUIZ 1; December 1, 2009 DR JEFFREY ORGANIC CHEMISTRY I; REVIEW Propose valid and complete Lewis structures for the following: a) N2O3 b) SOCl2 c) C2N2 d) POCl3 e) CH2N2 One of the following four molecular formulae represents an ‘impossible molecule’. Which one is it? Why is it ‘impossible’? HClO4, OF2, HFO4, C2H6SO Each of the following Lewis structures has one or more ‘errors’. Circle and describe these errors: Lewis structures: Describe the bonding and shape of molecules Describe bonding only Describe shape only None of the above Formal charges: must be used for ‘octet exceptions’ must never be used for octet exceptions must sum to the overall charge of a chemical species must sum to the overall charge minus one