For each pair of molecules, determine whether umpolung (polarity reversal) should be considered to join the highlighted carbons together. (a) (b) (c) Br NaCN
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- Draw all resonance contributors for each of the following molecules or ions. Be sure to include the curved arrows thatindicate which pairs of electrons are shifted in going from one resonance structure to the next.(a) CH3NO2(b) CH3CO-2(c) CH3CHCHCH-2(the ion has two C-C single bonds)(d) C5H5N (a ring is formed by the C and N atoms, and each H is bonded to C)(e) C4H5N (a ring is formed by the C and N atoms, the N is bonded to one H, and each C is bonded to one H)Follow the format of solving the problem where you should write the GIVEN, ASKED, SOLUTION, and ANSWER. Add curved arrows to the following reactions to indicate the flow of electrons for all of the bond-forming and bond-breaking steps.a.) Draw all constitutional isomers of compounds with the molecular formula C4H9Br. (b) Are any of the structures in part (a) primary alkyl bromides? If so, circle it/them
- Draw the curved arrows and the product for each of the following nucleophilic addition steps. (a) (b) + CH,OK ? + CH3LI (c) MgBr (d) ? + NABH4 ? (e) (f) O → ? ? + N2OH +a) Draw the arrow-pushing mechanism for the reaction of hydronium with ethanol. Include all lone pairs and non-zero formal charges. b) Draw the arrow-pushing mechanism for the reaction of NaNH₂ with chloroform. Include all lone pairs and non-zero formal charges. c) Draw the arrow-pushing mechanism for the reaction of sodium hydroxide with phenol. Include all lone pairs and non-zero formal charges. d) Are any of the above reactions reversible? Do any of them go to completion? Explain your answer.For each of the following, there are two possible radical addition steps. In each case, draw the curved arrow notation and product for both radical additions and predict the more stable product.
- (b) Addition of HBr to the alkene in the presence of peroxide form radical intermediates. Based on the following reaction, use the curved arrows to HBr B (preferred product) ROOR (i) show the initiation step of this reaction. (ii) draw the possible structures of the two radicals formed in the propagation step. (ii) explain the formation of the preferred product B.For the following compounds answer part a and b.Please don't provide handwritten solution.....