The rate-limiting step for the nitration of a benzene ring is _____________. formation of the electrophile...
The rate-limiting step for the nitration of a benzene ring is _____________.
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formation of the electrophile |
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re-aromatization of the ring system |
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the step in which C-N bond formation occurs |
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C-H bond deprotonation |
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none of these answers are correct |
Homework Answers
formation of the electrophile
HNO3 + H2SO4 -----> NO2+ + H2O + HSO4
No2+ is electrophile
formation of electrophile is rate determining step.
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The rate-limiting step for the nitration of a benzene ring is
_____________.
formation of the electrophile...
Identify the electrophile in the nitration of benzene reaction.
Question 9 Identify the electrophile in the nitration of benzene reaction. a) NO2+ b) NO3+ c) NO2 d) HNO3 Question 10 Which of the marked hydrogens is most acidic?
Benzene will engage in electrophile aromatic substitution reactions. Which of the following statemtns is NOT TRUE...
Benzene will engage in electrophile aromatic substitution
reactions. Which of the following statemtns is NOT TRUE about the
mechanism for this reaction? please help I dont know what to
put!
3. Benzene will engage in electrophilic aromatic substitution reactions. Which of the following statements is not true about the mechanism for this reaction? A. Formation of a carbocation intermediate is the rate-determining step. B. The carbocation intermediate has an sp3-hybridized carbon in the ring. C. Benzene is an electrophile. D....
6. and the nucleophile in the rate- What are the electrophile limiting step of the following...
6. and the nucleophile in the rate- What are the electrophile limiting step of the following reaction? ilBr Br HO
What electrophile adds to benzene when it undergoes nitration? O NO3 O HNO3 O NO O...
What electrophile adds to benzene when it undergoes nitration? O NO3 O HNO3 O NO O +NO2 The major product(s), C, of the following reaction, would be: CI SO3 H2SO4 CI CI CI SO,H & CI CI HO3s CI SO3H - II Equal amounts of I and II O! O II O Equal amounts of I and III
For the thermal NO (Zeldovich) mechanism, the rate-limiting step in the NO formation process is O...
For the thermal NO (Zeldovich) mechanism, the rate-limiting step in the NO formation process is O + N2 → NO + N. The reaction rates for the following temperature are T-1000K: k-4.41- 10-3 cm3 mol s-1 T-1200K: k-2.59 cm3 mol s1 Show the following relation for the production rate of NO to be true, assuming that the concentrations of 02 and O atoms are in equilibrium (O 20) and the N2 concentration is not changing: dINO] -9.3 1017exp 68690K dt...
For the synthetic scheme below, please indicate the following: reagents and reaction conditions step (above/below the...
For the synthetic scheme below, please indicate the following: reagents and reaction conditions step (above/below the arrows), name of each reaction, and the generic name of each product (15 pts). for each MgBr Names of reactions: Give generic names of compounds: B: D: G: ctly draw the mechanism for the reaction above 1. The first step in that reaction is A) Deprotonation of acetylenic H atom with R-X B) Formation of acetylide anion. C) Deprotonation of acetylenic H atom with...
For the synthetic scheme below, please indicate the following: reagents and reaction conditions s...
For the synthetic scheme below, please indicate the following: reagents and reaction conditions step (above/below the arrows), name of each reaction, and the generic name of each product (15 pts). for each MgBr Names of reactions: Give generic names of compounds: B: D: G: ctly draw the mechanism for the reaction above 1. The first step in that reaction is A) Deprotonation of acetylenic H atom with R-X B) Formation of acetylide anion. C) Deprotonation of acetylenic H atom with...
draw chlorination Mechanism faw Yhe chlorinahion mathenism and the other a ketone, is: A) 13C NMR B) 'H NMR C) Mass spectroscopy D IR spectroscopy E) UV/VIS spectroscopy 23. The last step in t...
draw chlorination Mechanism
faw Yhe chlorinahion mathenism and the other a ketone, is: A) 13C NMR B) 'H NMR C) Mass spectroscopy D IR spectroscopy E) UV/VIS spectroscopy 23. The last step in the chlorination of an aromatic ring is: A) Formation of the Wheland intermediate B) Attack of the benzene ring onto the polarized chlorine molecule C) Lewis acid-Lewis base reaction D) Deprotonation of the Wheland intermediate E) Addition of the chlorine atom to the sp hybridized carbon 24....
the room 1, the steps from I lol is the rate limiting step S. In a...
the room 1, the steps from I lol is the rate limiting step S. In a carbonic anhydrase reaction, which type(s) of catalytic mechanism(s) listed below is/are used? 7 Im-Zn20 S-E Im -H20 a. General acid/base. b. Covalent. c. Both d. None of the above. + H + H-0- Im-Zn2+0 Im H 6. Which of the following about enzyme reaction is INCORRECT? a. Acid-base reactions are sensitive to pH, since the ionization state of amino acid residues can be affected...
437 Predict whether the following substituents on the benzene ring are likely to be ha para...
437 Predict whether the following substituents on the benzene ring are likely to be ha para directing or meta directing and whether they are like to be ring activating or ring deactivating deact vabang a) - NH(CH 4.38 For each of the monosabstituted benenes shown below, (1) Indicate whether the substituent is ortho, para directing or meta directing (2) Draw the structure of the main monosubstitution product for each of the reactions indicated orth. OCH3 + HCl -OCHE (fecutulys ortho...
Benzene will engage in electrophile aromatic substitution
reactions. Which of the following statemtns is NOT TRUE about the
mechanism for this reaction? please help I dont know what to
put!
3. Benzene will engage in electrophilic aromatic substitution reactions. Which of the following statements is not true about the mechanism for this reaction? A. Formation of a carbocation intermediate is the rate-determining step. B. The carbocation intermediate has an sp3-hybridized carbon in the ring. C. Benzene is an electrophile. D....
6. and the nucleophile in the rate- What are the electrophile limiting step of the following reaction? ilBr Br HO
What electrophile adds to benzene when it undergoes nitration? O NO3 O HNO3 O NO O +NO2 The major product(s), C, of the following reaction, would be: CI SO3 H2SO4 CI CI CI SO,H & CI CI HO3s CI SO3H - II Equal amounts of I and II O! O II O Equal amounts of I and III
For the thermal NO (Zeldovich) mechanism, the rate-limiting step in the NO formation process is O + N2 → NO + N. The reaction rates for the following temperature are T-1000K: k-4.41- 10-3 cm3 mol s-1 T-1200K: k-2.59 cm3 mol s1 Show the following relation for the production rate of NO to be true, assuming that the concentrations of 02 and O atoms are in equilibrium (O 20) and the N2 concentration is not changing: dINO] -9.3 1017exp 68690K dt...
For the synthetic scheme below, please indicate the following: reagents and reaction conditions step (above/below the arrows), name of each reaction, and the generic name of each product (15 pts). for each MgBr Names of reactions: Give generic names of compounds: B: D: G: ctly draw the mechanism for the reaction above 1. The first step in that reaction is A) Deprotonation of acetylenic H atom with R-X B) Formation of acetylide anion. C) Deprotonation of acetylenic H atom with...
For the synthetic scheme below, please indicate the following: reagents and reaction conditions step (above/below the arrows), name of each reaction, and the generic name of each product (15 pts). for each MgBr Names of reactions: Give generic names of compounds: B: D: G: ctly draw the mechanism for the reaction above 1. The first step in that reaction is A) Deprotonation of acetylenic H atom with R-X B) Formation of acetylide anion. C) Deprotonation of acetylenic H atom with...
draw chlorination Mechanism
faw Yhe chlorinahion mathenism and the other a ketone, is: A) 13C NMR B) 'H NMR C) Mass spectroscopy D IR spectroscopy E) UV/VIS spectroscopy 23. The last step in the chlorination of an aromatic ring is: A) Formation of the Wheland intermediate B) Attack of the benzene ring onto the polarized chlorine molecule C) Lewis acid-Lewis base reaction D) Deprotonation of the Wheland intermediate E) Addition of the chlorine atom to the sp hybridized carbon 24....
the room 1, the steps from I lol is the rate limiting step S. In a carbonic anhydrase reaction, which type(s) of catalytic mechanism(s) listed below is/are used? 7 Im-Zn20 S-E Im -H20 a. General acid/base. b. Covalent. c. Both d. None of the above. + H + H-0- Im-Zn2+0 Im H 6. Which of the following about enzyme reaction is INCORRECT? a. Acid-base reactions are sensitive to pH, since the ionization state of amino acid residues can be affected...
437 Predict whether the following substituents on the benzene ring are likely to be ha para directing or meta directing and whether they are like to be ring activating or ring deactivating deact vabang a) - NH(CH 4.38 For each of the monosabstituted benenes shown below, (1) Indicate whether the substituent is ortho, para directing or meta directing (2) Draw the structure of the main monosubstitution product for each of the reactions indicated orth. OCH3 + HCl -OCHE (fecutulys ortho...
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