Which of the following arrows or structures contains an error? Options:   Arrow 1   Structure 2   Arrow 3   Arrow 4   Structure 5

Can you help me find all of the electron geometry tetrahedral bonds in this Vitimine A structure? The photo attached is one I got wrong. Thank you.

How would you draw a structure like (+-)hexane-3,4-diol?  What about (+)hexane-3,4-diol or (-)hexane-3,4-diol? Would it be impossible to draw these two because + and - separately are determined via polarimetry and not spatial arrangement?

1 36 2 37 38 39 A Moving to another question will save this response. Question 9 Classify the reaction shown below. Br x NaOH O rearrangement O substitution O addition O cyclization O elimination x

19. Draw the structure for the compound at the bottom of the page. Show your reasoning. C3H1403 100 80 4880 3580 3000 2568 2000 1500 1000 2H 3H 3H 2H 2H 2H 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 PPM 9LC42 86 9 1745.80 BL SS LIC 1486.89 1387. 12 852.85 O 208

Draw the structural formula(s) for the branched constitutional isomer(s) with the molecular formula C-H16 that have two methyl groups on the same carbon. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right comer. • Separate structures with + signs from the drop-down menu. opy aste ChemDoodle"

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