Homework Answers
5.
In monochlorination of methylcyclohexane 5 structural isomers can be formed.
Structure of 5 isomers are given below.
6.
H3O+ can act as an electrophile.
7.
Stability of radical increases with number of alpha hydrogens.
Radical with more number of alpha hydrogen is more stable due to hyperconjugation.
Radical a has 2 alpha hydrogens.
Radical b has 4 alpha hydrogens .
Radical c has 8 alpha hydrogens.
Hence, radical a is the least stable.
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5. How many different monochlorinated products will result from the radical chlorination of methylcyclohexane? c) 3...
How many distinct monochlorinated products can result when 2-methylpropane is subjected to free radical chlorination? A)...
How many distinct monochlorinated products can result when 2-methylpropane is subjected to free radical chlorination? A) 1 B) 2 C) 3 D) 4 E) 5 Please explain
Ho for the pre c! . Given the bond dissociation energies below in Kcal/mol, estimate the ano forth (CH),CH-CI step...
Ho for the pre c! . Given the bond dissociation energies below in Kcal/mol, estimate the ano forth (CH),CH-CI step . CHCI c) 40 kcal/mol (CH.J.CH a) +22 kcal/mol b)-22 kcal/mol e) -45 kcal/mol he major monobrominated product that results from when methylcyclopentane is subjected d) +45 kcal/mol c) a tertiary halide radical bromination is b) a secondary halide e) bromomethane a) A primary halide d) A quaternary halide 3. Which of the following is a termination a) Cl +...
19) When 2,2-dimethylbutane is subjected to free-radical chlorination, _distinct monochlorinated products are possible and of these...
19) When 2,2-dimethylbutane is subjected to free-radical chlorination, _distinct monochlorinated products are possible and of these contain asymmetric carbon atoms. A) 4,2 B) 5,0 C) 3,0 D) 5,2 E) 4,0 20) Arrange the substrates in order of increasing Sn2 reactivity with NaCN: Bromoethane, 1-chloro-3,3-dimethylpentane, 1-chloro-2,2-dimethylpentane, and 2-bromo-2-methylpentane. 21) Arrange the following compounds in order of increasing reactivity toward ethanol solvolysis: t-butyl bromide, l-butyl iodide, isopropyl chloride, and methyl iodide.
help with this worksheet please! 1. Determine the radical stability with 1 the most stable and...
help with this worksheet please!
1. Determine the radical stability with 1 the most stable and 4 the least stable 2. What is the major product of 2-methylpropane mono-chlorination? Cl2 light 3. Calclate AH for chlorination of methane (DHe for CHa-H is 440 kJ/mol; DH° for Cl-Cl is 243 kJ/mol; DH° for CH3-Cl is 432 kJ/mol; and DH° for H-Cl is 353 kJ/mol 4. Draw structure of the most stable radical formed by hydrogen radical abstraction from 3- methylcyclohexene 5....
For each pair of species, predict which is the stronger base? 5. Он or 1. 2. or В в NH NH (a) (b) 6. Rank the follo...
For each pair of species, predict which is the stronger base? 5. Он or 1. 2. or В в NH NH (a) (b) 6. Rank the following from most stable to least stable. 2. 3. 4. Нас Н-с O H -н CH H CH,сH, сн,сн CH,CH 7. Which cation would be the most stable? А. В. C. D. What is the order of increasing contribution to the resonance hybrid? 8. CF3 ÇF3 CF3 I II III
For each pair of species, predict which is the stronger base? 5. Он or 2. or HH 1. NH NH (b) 6. Rank the following...
For each pair of species, predict which is the stronger base? 5. Он or 2. or HH 1. NH NH (b) 6. Rank the following from most stable to least stable. 4. 1. 2. 3. Н-с H H Н.с H -H H CH3 CH,сн, CH,сH CH,CH H 7. Which cation would be the most stable? А. В. C. D. What is the order of increasing contribution to the resonance hybrid? 8. CF3 Lnkentn CF3 CF3 Ш II I
2) Order the following alkenes from most stable to least stable Нас Нас с-сн, н,с Hас +C- Нас н CHs -CH3 H Hе mos...
2) Order the following alkenes from most stable to least stable Нас Нас с-сн, н,с Hас +C- Нас н CHs -CH3 H Hе most stable least stable (a) I (b) I (c) I ll (d) 7) Order the following C-H bonds from strongest to weakest. strongest weakest (a) (b) (c) II (d) 8) Which of the following is represents the lowest energy transition state for the addition of BH, to 2-methyl-1-propene? quCH «сHs нСи Нас (b) (a) Нив--н H H...
Model 3: Reactions of Bromine Radical with Various Alkanes For each reaction below, the most likely products are sh...
Model 3: Reactions of Bromine Radical with Various Alkanes For each reaction below, the most likely products are shown. H H H H Rxn I : Br -H H H H H H H H Br H Rxn IV C- H H CHy сн, H,C нC Rxn V BrH н.с CH -сн Critical Thinking Questions 5. Label the carbon radicals in Model 3 as methyl. primary, secondary, tertiary, allyl or benzyl. a) Which carbon radical in Model 3 is closest...
In stable organic compounds, carbon will always form (a) 2 bonds (b) 4 bonds (c) 3...
In stable organic compounds, carbon will always form (a) 2 bonds (b) 4 bonds (c) 3 bonds (d) 5 bonds Compounds with the same molecular formula but different structural formulas are called (a) Alkoxides (b) Iso compounds (c) Isomers ! (d) Ortho compounds iii. In the chlorination of alkanes, the first step in which chlorine free radicals are produced is called: (a) initiation (b) activation (c) propagation (d) deactivation In the reaction of propene with HCI, H' ion acts as...
Br NH, How many different products are possible from the reaction shown? ? Q Zoom А...
Br NH, How many different products are possible from the reaction shown? ? Q Zoom А 1 B 2 3 D 4 5 6
Ho for the pre c! . Given the bond dissociation energies below in Kcal/mol, estimate the ano forth (CH),CH-CI step . CHCI c) 40 kcal/mol (CH.J.CH a) +22 kcal/mol b)-22 kcal/mol e) -45 kcal/mol he major monobrominated product that results from when methylcyclopentane is subjected d) +45 kcal/mol c) a tertiary halide radical bromination is b) a secondary halide e) bromomethane a) A primary halide d) A quaternary halide 3. Which of the following is a termination a) Cl +...
19) When 2,2-dimethylbutane is subjected to free-radical chlorination, _distinct monochlorinated products are possible and of these contain asymmetric carbon atoms. A) 4,2 B) 5,0 C) 3,0 D) 5,2 E) 4,0 20) Arrange the substrates in order of increasing Sn2 reactivity with NaCN: Bromoethane, 1-chloro-3,3-dimethylpentane, 1-chloro-2,2-dimethylpentane, and 2-bromo-2-methylpentane. 21) Arrange the following compounds in order of increasing reactivity toward ethanol solvolysis: t-butyl bromide, l-butyl iodide, isopropyl chloride, and methyl iodide.
help with this worksheet please!
1. Determine the radical stability with 1 the most stable and 4 the least stable 2. What is the major product of 2-methylpropane mono-chlorination? Cl2 light 3. Calclate AH for chlorination of methane (DHe for CHa-H is 440 kJ/mol; DH° for Cl-Cl is 243 kJ/mol; DH° for CH3-Cl is 432 kJ/mol; and DH° for H-Cl is 353 kJ/mol 4. Draw structure of the most stable radical formed by hydrogen radical abstraction from 3- methylcyclohexene 5....
For each pair of species, predict which is the stronger base? 5. Он or 1. 2. or В в NH NH (a) (b) 6. Rank the following from most stable to least stable. 2. 3. 4. Нас Н-с O H -н CH H CH,сH, сн,сн CH,CH 7. Which cation would be the most stable? А. В. C. D. What is the order of increasing contribution to the resonance hybrid? 8. CF3 ÇF3 CF3 I II III
For each pair of species, predict which is the stronger base? 5. Он or 2. or HH 1. NH NH (b) 6. Rank the following from most stable to least stable. 4. 1. 2. 3. Н-с H H Н.с H -H H CH3 CH,сн, CH,сH CH,CH H 7. Which cation would be the most stable? А. В. C. D. What is the order of increasing contribution to the resonance hybrid? 8. CF3 Lnkentn CF3 CF3 Ш II I
2) Order the following alkenes from most stable to least stable Нас Нас с-сн, н,с Hас +C- Нас н CHs -CH3 H Hе most stable least stable (a) I (b) I (c) I ll (d) 7) Order the following C-H bonds from strongest to weakest. strongest weakest (a) (b) (c) II (d) 8) Which of the following is represents the lowest energy transition state for the addition of BH, to 2-methyl-1-propene? quCH «сHs нСи Нас (b) (a) Нив--н H H...
Model 3: Reactions of Bromine Radical with Various Alkanes For each reaction below, the most likely products are shown. H H H H Rxn I : Br -H H H H H H H H Br H Rxn IV C- H H CHy сн, H,C нC Rxn V BrH н.с CH -сн Critical Thinking Questions 5. Label the carbon radicals in Model 3 as methyl. primary, secondary, tertiary, allyl or benzyl. a) Which carbon radical in Model 3 is closest...
In stable organic compounds, carbon will always form (a) 2 bonds (b) 4 bonds (c) 3 bonds (d) 5 bonds Compounds with the same molecular formula but different structural formulas are called (a) Alkoxides (b) Iso compounds (c) Isomers ! (d) Ortho compounds iii. In the chlorination of alkanes, the first step in which chlorine free radicals are produced is called: (a) initiation (b) activation (c) propagation (d) deactivation In the reaction of propene with HCI, H' ion acts as...
Br NH, How many different products are possible from the reaction shown? ? Q Zoom А 1 B 2 3 D 4 5 6
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