Chem HL P3 2001

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Unformatted text preview: from parts (a) and (b) to explain the existence of geometrical isomers. [2] ......................................................................... ......................................................................... ......................................................................... (d) Suggest a reason why compounds containing three-membered carbon rings are less stable than those containing four-membered rings. [1] ......................................................................... ......................................................................... 221-154 Turn over – 22 – H2. (a) M01/420/H(3) Nitration of aromatic compounds can be carried out using nitric acid. Draw the structures of the two major products of the mononitration of phenol using dilute nitric acid, and label them X and Y. Suggest a structure for a product if concentrated nitric acid were used and label it Z. Explain why the conditions for the mononitration of phenol are much milder than for the mononitration of benzene. [5] .............................
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This note was uploaded on 05/02/2008 for the course CHEM 142,152,16 taught by Professor Unknown during the Spring '08 term at University of Washington.

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