KBB organic questions

[Alanine]

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I have a couple of questions about the KBB practice test that's in the back of the book. theyre all referring to the organic chemistry section (questions 70-100)

#92 i really do not understand how "E" could be the answer. the Carbon on the carboxylic acid group has 5 bonds, making it unstable and the oxygen has a negative charge even though it has a double bond to the carbon. Personally, i though letter "C" was the right answer.

#100 would the NO2 prefer to go to the 'p' position over the 'o' position? is there a reason why the 'o' position is the major product?

 

[lvtran]

There are quite a few mistakes in the KBB, sometimes figures are drawn wrong. trust what you learned, cross-check with different sources. Here is a table on ortho vs para http://nlfaculty.dcccd.edu/logan/slides/chapter15/tsld021.htm. It looks like ortho is more preferred.