Guided course 03:25Determine which of the following radicals is the most stable.Johnny Betancourt2718views57rank18comments
Textbook Questionc. Use the information in [TABLE 4-2] (page 167) to explain why toluene (PhCH3) has a very high octane rating of 111. Write an equation to show how toluene reacts with an alkyl free radical to give a relatively stable radical.522views
Textbook QuestionA student adds NBS to a solution of 1-methylcyclohexene and irradiates the mixture with a sunlamp until all the NBS has reacted. After a careful distillation, the product mixture contains two major products of formula C7H11Br. b. Rank these three intermediates from most stable to least stable.506views
Textbook QuestionExplain the dramatic difference in rotational energy barriers of the following three alkenes. (Hint: Consider what the transition states must look like.) 259 kJ/mol 179 kJ/mol 66 kJ/mol 628views
Textbook Question(•••) The following ethers are ranked according to their ability to form explosive peroxides. Explain this ranking based on your knowledge of the reaction mechanism.360views
Textbook QuestionBased on the stability of the radicals produced, predict which bond in each pair would have the higher bond-dissociation energy. (a)389views
Textbook QuestionBased on the stability of the radicals produced, predict which bond in each pair would have the higher bond-dissociation energy. (b)358views
Textbook QuestionBased on the stability of the radicals produced, predict which bond in each pair would have the higher bond-dissociation energy. (c)409views
Textbook QuestionThe following polyunsaturated fat, which does not exist in nature, is oxidized at a rate similar to oleic acid (Table 11.14), despite having two cis-alkenes. Why?<IMAGE>263views
Textbook QuestionEthers can be converted into radicals, some more easily than others. Which of the following radicals is more stable, and thus, more likely to form?332views
Textbook QuestionBased on the stability of the radicals produced, predict which bond in each pair would have the higher bond-dissociation energy.(d) <IMAGE>267views
Textbook QuestionMethyl t-butyl ether (MTBE) is used preferentially over diethyl ether because it is less prone to form peroxides. Explain this observation in terms of the two structures.<IMAGE>405views
Textbook Questiona. Which of the hydrogens in the structure in the margin is the easiest for a chlorine radical to remove?b. How many secondary hydrogens does the structure have?271views
Textbook QuestionRank the following radicals in decreasing order of stability. Classify each as primary, secondary, or tertiary.a. The isopentyl radical, (CH3)2 CHCH2—⋅CH2b. The 3-methyl-2-butyl radical, CH3—⋅CH—CH(CH3)2c. The 2-methyl-2-butyl radical, CH3—⋅C(CH3)CH2CH3d. <IMAGE>385views
Textbook QuestionUse the information in Table 4-2 (p. 167) to rank the following radicals in decreasing order of stability.⋅CH3CH3⋅CH2<IMAGE> (CH3)3C⋅ (CH3)2⋅CHCH2=CH—⋅CH2225views
Textbook Question(••) For each set of reactive intermediates, rank them in order of reactivity (1 = most reactive).(b) <IMAGE>260views
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