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Question 3 Which is the most stable imine? Bu NO Bu Bn Ph N Ph Pr...
Which of the following mechanisms for the formation of the most stable imine is correct? Which of the following mechanisms for the formation of the most stable imine is correct? HNER HIN=R А OH йон, -cн, Ph (NH R-NH2 Ph Ph CH3 OH -CH3 Ph N-H- RH Ph CH3 Ph TCH NH R CH3 Ph CH3 R H2N-R H2N-R H2NER H2NER B o H- он, R-NH2 -CH3 Ph CH3 Ph CH3 * он -CH3 Ph NH RM H2N-R X CH₃...
Ос OB ОЕ ОА D Question 23 4 pts Which sets of reagents would most readily undergo the following transformation? 7 anconote - Yo'l-oylering А B с None. All would liminate OD OA a O
QUESTION 14 Which of the following mechanisms for the formation of the most stable imine is correct? HÆNER HNER А R H-0. R-NH --- PhCH Ph Ph Patch Ph CH, "CH PH CH, NH NH RH R HN-R HN-R HNER HANZA B -CH R-NH2 Ph Ph PH PACH Ph Ph Ph CH CH MY RH HN-R HN-R HNR HON-R c OH HO R-NH2 Ph Ph Ph CH Pt-CH Ph CH, Ph CH NH R R HN-R HN-R MNR HNER D...
QUESTION 5 O OEt OEt I + 2 O OEt Ph ОН Ph Ph Ph OH A B с Et OEt H2O Ph nto Et Ph nto OEt D E F Select the two products that will form in the reaction outlined above. ОА OB OD ОЕ OF
Question 5 For a chemical reaction, AH° 238 = +135.7 kJ and A Sº= +0.379 kJ/K. Calculate A Gº 800 A-167.5 kJ B.-132.8 kJ C. +133.9k D-212.8 kJ E.-192.3 kJ ОА OB ОС OD ОЕ Question 6 0.5 pt For a chemical reaction, Hº 238 = +135.7 kJ and A Sº = +0.379 kJ/K. At what temperature will A Gº=0? A. 213K B. 402K C.358 K D. 470K E. 251K ОА OB Ос OD ОЕ Question 7 0.5 For a...
Question 8 4 pts What types of splitting patterns would you expect in the proton NMR spectrum of the molecule shown below? Mark all that apply. es doublet singlet A triplet с quartet D sextet E B ОА OB Ос OD ОЕ Question 9 4 pts Which compound corresponds to the H NMR spectrum below? (Integral values are indicated above/beside signals.) 3 3 2 1 0 2 PPM FO 6 ho La А B с D E OB o D...
QUESTION 14 Which of the following mechanisms for the formation of the most stable imine is correct? H2NER H2NER A 16 іон, HUR R-NH2 CN Ph H-O: -CH3 Ph NH R Ph CH3 CH3 : ОН -CH3 Ph UNH R H H2N-R Ph -CH3 CNH Ph CH3 Ph CH3 H2N-R HN=R H₂NER B +H R-NH2 N : OH -CHE Ph Hö -CH3 Ph1 NH R OH CH3 Ph NH Ph CH3 Ph CH3 Ph CH3 Ph CH3 H H2N-R H2N-R...
Question 33 2 pts Which one of the following molecules is polar? (a) BC13 (b) Bel2 (c) CCIA (d) CHCl3 (e) Br2 Ос ОЕ OB OD ОА
QUESTION 10 Find the value of b for which 1+ e + 25 +236 +...=2 ОА In 2 3 OB In 2 Ос In 2 OD. In 3 OE In
QUESTION 13 T Find the direction in which f(x, y, z) (4,1,1)? yz decreases most rapidly at the point y ОА 1 (-1,5, -1) 27 OB. (1, -5,1) 27 Ос. 27 (-1,5,1) OD. V27(1.-5, -1) ОЕ 1 (1,5,1) V27