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- 5. (a) Draw the product/s of the reaction; (b) Indicate the mechanism: changed from acetone to methanol? CI CH3CO₂Na ; (c) What will happen if the solvent isComplete the synthetic sequence below by providing the structures of the reaction (questions 7-8). 1 mole of HOCH,CH,OH/H > B 1. LIAIH, 1.03 H* 2. Zn/H 2. Н.О. What is the structure of B? HO. (A) (D) OHThe following figure shows the energy profile of a nucleophilic substitution reaction. Potential energy :ÖH H HII.C H C-1 H HO--C---I HH Reaction coordinate H -CH HO–CHITH H + 1 According to this, it is correct to affirm: O The activation energy (4G°) shows that it is thermodynamically favorable. O Represents a reaction that occurs in one step where a pentavalent chemical species is formed. O The intermediate has lower energy than any transition state. O The formation of the intermediate releases energy and is therefore thermodynamically favourable.
- 5. Using curved arrows show the mechanism for the hydrohalogenation for the following reaction. Show how the two possible intermediate products are formed and explain why only one product proceeds to form the product. Clearly indicate attack of electrons and full and partial (8) charges. H-Br Br H-Br Product Intermediate ProductsQ15 Which of the given species or reaction steps, involved in a Grignard reaction, is not correct? Here, the species can be a reactant, intermediate, transition state, product, or byproduct. aj MgBr b) H₂0 Br :05 H *MgBr H H5. Which of the following is an elimination reaction? а. С2Н2(g) + Н:(g) b. CH3CH2CH2OH() c. C3H6(g) + HCl(g) d. CH:ОН(аq) + HCOОН(aq) e. 2C2H2(g) + 502(g) C:H4(g) CH;CHCH2(g) + H2O() C3H;CI() C2H5-O-CHO() + H2O() 4CO2(g) + 2H20(g) >
- Supply the missing products in the following reactions, as indicated by CAPITAL letters inside the box. A Cl CH H,5O, H,0 HgSO. H, PrO, G H CHCH;Br NaNH, 2кон, athanol F KMN0, HOrganic Chemistry Мaxwell presented by Macmillan Learning For the dehydrohalogenation (E2) reaction shown, draw the major organic product. Select Draw Rings More Erase H CH;CH2OK CH3CH2OH heat Br1) Which reaction is likely to be more exergonic, one with Keq = 1000 or one with Keq = 0.001?
- Draw the orgamic molecule(s) which is(are) formed in the following reaction. Do not include molecules like H,O or HCl. (You have 2 chances until the answer will be given; you have already tried 0 times) CH, H+ + H,O H,C CH, H,7. What is the effect of doubling the concentration of both the alkyl halide and the alcohol in the following S1 reaction: (CH₂) CBr + CH₂OH (A) No change in the rate. (B) Doubles the rate. (C) Triples the rate. (D) Quadruples the rate. (E) None of the (A) to (D) choices is correct. (CH3),COCH, + HBrConsider the reaction below. If the concentration of the nucleophile is doubled, the rate of the reaction will If the concentration of the alkyl halide is doubled, the rate of the reaction will H₂O x CI OH (c) double, not change (d) triple, triple (a) not change, double(b) double, double (e) not change, not change