UESTION 9 Cyclopentadiene is unusually acidic for a hydrocarbon (i.e., it loses hydrogen easily to a base). Why? O Cyclopentadiene is aromatic. Removal of a hydride ion (H:") from cyclopentadiene yields an aromatic cation. Removal of H* from cyclopentadiene yields an aromatic anion. Removal of a hydrogen atom from cyclopentadiene yields an aromatic radical. QUESTION 10 Which reagent will react with benzene?

UESTION 9 Cyclopentadiene is unusually acidic for a hydrocarbon (i.e., it loses hydrogen easily to a base). Why? O Cyclopentadiene is aromatic. Removal of a hydride ion (H:") from cyclopentadiene yields an aromatic cation. Removal of H* from cyclopentadiene yields an aromatic anion. Removal of a hydrogen atom from cyclopentadiene yields an aromatic radical. QUESTION 10 Which reagent will react with benzene?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Substituents on an aromatic ring can have several effects on electrophilic aromatic substitution reactions. Substituents can activate or deactivate the ring to substitution, donate or withdraw electrons inductively, donate or withdraw electrons through resonance, and direct substitution either to the ortho/para or to the meta positions. From the lists of substituents, select the substituents that correspond to each indicated property. The substituents are written as -XY, where X is the atom directly bound to the aromatic ring.
Rank the following groups in order of their ability to activate an aromatic compound to electrophilic aromatic substitution.
Rank these alkyl halides in order of increasing reactivity in an SN2 reaction
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True or False: Acetylene is a naturally occurring conjugated diene True or False: The Diels-Alder reaction has the stereochemistry of the dienophile is retained in the product. True or False: When looking at kinetic vs. thermodynamic products the kinetic product predominates at low temperature. True or False: the mechanism of the Diels-Alder reaction is three π bonds break; one σ bond and two π bonds form.
Choose the correct statement(s) regarding Aryl halides participation in NAS reactions. The rate of nucleophilic substitution increases with increasing numbers of electron withdrawing substituents A strong deactivating group in the para /ortho position is necessary A strong deactivating group in the meta position is necessary. The rate of nucleophilic substitution increases with increasing numbers of electron donating substituents. A strong activating group in the para and/or ortho is necessary
What type of substituent effect do you expect a -CC12-CC12-CC13 (perchloropropyl) group to have upon aromatic electrophilic substitution reactions? Resonance electron donor; activating substituent; ortho/para director Inductive electron donating; activating substituent; ortho/para director Resonance electron withdrawing; deactivating substituent; ortho/para director Inductive electron withdrawing; deactivating substituent; meta director
6- In a 1H-NMR spectra on a scale of 0 – 10 ppm, Show the exact locations in ppm of 1-the saturated hydrocarbons, 2- the unsaturated hydrocarbons, 3- the halogenatedhydrocarbons and 4- the aromatic hydrocarbons.
2- Apply the polygon-and-circle method to the cyclopentadienyl cation and explain whether it would be aromatic or not. Cyclopentadienyl cation
Cyclopentadienyl anion (shown) has the following characteristic. O it is an anion with six π electrons, meeting the Hückel rule for aromaticity O it is not aromatic because it has only four electrons and the tetrahedral carbon prevents cyclic conjugation O it is an anion with six electrons, meeting the Hückel rule for anti-aromaticity O it is an anion with four electrons, meeting the Hückel rule for aromaticity
Need help with D, not C.
To practice types of aromatic reactions, this next practice problem provided us these reactions. What are the products?