4) The omast absorptions in the UV spectra of ldehydes and ketones are ones whic

Question

4) The omast absorptions in the UV spectra of ldehydes and ketones are ones which result from -dectronic transitions Which of the following compounds would be the product for the reaction shown below? 20) vace TC 15) When pyridine is treated with a mixture of nitric and sulfuric acids, the maior organic product is A) 2-nitropyridine B) 3-nitropyridine C) 4-nitropyridine D) 3-aminopyridine E) 4-aminopyridine A) ?? 16) In the mass spectrum of 3,3-dimethylbutan-1-one ?? 3,3-dimethyl-2-butanone], the base peak will occur at an m/z of what value? B) A) 100 B) 85 C) 84 D) 58 E) 43 17) When a primary amine reacts with an alkyl sulfonyl chloride, the major organic product is C) CH3 B a oaylhydrazo C) a sulfoxide D) an oxime E) a sulfonamide D) 18) Which of the following describes a complete reaction route to produce an aldehyde? A) reaction of a primary alcohol with Na CrO, B) reaction of a ketone with ozone C) hydrogenation of an acid chloride using lithium D) treatment of an alkene with Sia BH E) All of selections A-D are correct E) 19) The Hoffman elimination reaction proceeds via a(n) A) EI B) E2 C) SN D) SN2 E) More than one of selections A-D is correct.

Explanation / Answer

14.Option A, sigma to sigma* since it needs more energy for election transition

15. Option B, 4-nitropyridine

16. Option A, mass is 100

17. Option E, sulfonamide

18. Option C

19. Option B, Hoffmann elimination is E2 3 reaction

20. Option O, an Acetal

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