Which is NOT a valid resonance form for the below compound?
A.
B.
C.
D.
Which is NOT a valid resonance form for the below compound? A. B. C. D. NH2
NH2 NH2 71. Which resonance contributor mup C. or a d. or h
NH2 NH2 71. Which resonance contributor mup C. or a d. or h
which of the below is not a valid resonance pair?
Which of the below is not a valid resonance pair? NO - 1 = arch
12. Draw the important resonance forms for the structure shown below. NH2 CH3- N-C NH2
Which compound is the most basic? Please give pka values each
compound.
A B C D
NH2 NH2
Which of the following statements regarding resonance is true? 1. The true form of the compound is an average of the resonance structures called the resonance hybrid. 2. all resonance structures must contribute equally to the resonance hybrid. 3. Resonance structures interconvert over time. 4. Atom connectivity must remain the same among resonance structures. 5. There cannot be more than two resonance structures for a given compound 3, 4 & 5 1, 3 & 4 2, 3 & 5 All...
Which of the following reagents can be used to prepare the compound below? NH2 ? OET (1 equiv.) + Select one or more: O a. H2N OE b. OEt , pyridine C. Pho OEt i d. Eto OEt i e. H OEt
Select the structure(s) that are valid resonance structures of the molecule below. both are valid
Indicate which Haworth projection corresponds to the beta-pyranose form of the Fischer projection below. Compound A Compound B Compound C Compound D Compound E Compound A Compound B Compound C Compound D Compound E
1. Which of the following is a correct resonance structure for compound shown in the right? NH 2. What is the relationship between the following compounds? A. constitutional isomers B. resonance structures C. conformers D. identical compounds
1. The most stable conformation of trans-3-ethyl-1-iodocyclohexane is a. Et b. C. d Et Et 2. a 3. Which of the following is NOT a resonance structure of ozone? b. a. d. All are valid resonance structures C. 4. Arrange the following bicyclic alkenes in order of increasing stability (least stable to most stable) II II d. Il<lll< C. I<ll<llI b. I<lll<ll a. Ill<ll< 5 What is the correct Lewis structure for CHsNCO? b. No 0 НС H,C- a. d....