i) ---Select---AB iv) ---Select---AB ii) ---Select---AB v) ---Select---AB iii) -
ID: 688894 • Letter: I
Question
i) ---Select---AB
iv) ---Select---AB
ii) ---Select---AB
v) ---Select---AB
iii) ---Select---AB
vi) ---Select---AB
i) ---Select---AB
iv) ---Select---AB
ii) ---Select---AB
v) ---Select---AB
iii) ---Select---AB
vi) ---Select---AB
This question deals with nucleophilic aromatic substitution reactions in which the addition step is the rate determining step. I. Select the term that makes each of the following statements true. (a) For the rates to be reasonable, it is necessary to have an (electron donating group or electron with drawing group) attached to the ring. (b) The aromatic ring must have (positive or negative) character. (c) The disubstituted benzene with the fastest rate has the nitro group (meta or para) to the halide. (d) After the addition step but before the elimination step, the negative charge in the most stable resonance structure will be on the (which atom) II. Select the molecule with the fastest rate out of each group.Explanation / Answer
II. i) B ii) B iii) B iv) A v) A vi) B
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