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nilee

Questions (18)

Which of the following would have the lowest stretching frequencyA. C=C B. C-O C. C=O D. N=O E. C-H
1. 0 answers
2. 387 views
Where would one expect to see a peak corresponding to a carbonyl groupA. 1350-1500 B. 1625-1800 C. 1700-1825 D. 1775-1900 E.
1. 2 answers
2. 587 views
Bond vibration frequencies are directly related to:A. The amount of atoms in a compound B. The electronegativity of the atoms C.
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2. 449 views
Order the following in order of increasing bond vibration frequency: O-H, sp3 C-H,sp C-H, sp2 C-H A. O-H < sp3 C-H < sp C-H <
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2. 504 views
In order for a Diels-Alder reaction to take place the diene must be in whatconformation? A. cis B. trans C. s-trans D. anti E.
1. 0 answers
2. 466 views
The Diels-Alder reaction is classified as a:A. polar reaction B. radical reaction C. substitution reaction D. pericyclic
1. 0 answers
2. 654 views
You perform a Diels-Alder reaction using 2.0 g butadiene sulfone (MW=118.15g/mol), 1.2 g maleic anhydride (MW=98.06 g/mol) and
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2. 525 views
The purpose of adding concentrated H2SO4 to the Diels-Alder adduct was to:A. hydrolyze the product to make the product
1. 1 answer
2. 1,173 views
The purpose of a gas trap in the Diels-Alder reaction set up is toA. Trap oxygen gas B. Trap the diels alder product C. Trap
1. 1 answer
2. 1,923 views
In order for the E2 elimination of an alkyl bromide to occur, the β-hydrogen andthe bromide leaving group must have
1. 1 answer
2. 500 views
Which of the following products of the acid-catalyzed elimination of 2-pentanol isthe Hoffmann elimination product? A.
1. 1 answer
2. 646 views
The E1 elimination reaction proceeds through a _________ .A. concerted process B. carbocation intermediate C. polarized
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2. 418 views
How many peaks would be expected in the 1H NMR spectrum for mesitylene?A. 2 B. 6 C. 3 D. 12 E. 9
1. 1 answer
2. 479 views
Why is 4-chlorophenol soluble in 2.5M NaOH solution, but not in water?A. Phenol is a weak acid so it can be deprotonated under
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2. 766 views
In order to obtain pure synthetic plant hormone, a 2:1 mixture of water andethanol is used as the crystallizing solvent. Why is
1. 2 answers
2. 705 views
When performing a dehydration reaction, what may be done to drive theequilibrium to the right: A. removal of the product as it
1. 3 answers
2. 502 views
What is the theoretical volume (at STP) of butene product that can be obtainedfrom the dehydration of 0.412 g of 2-butanol? (MW
1. 2 answers
2. 480 views
Potassium tert-butoxide is a common base for E2 reactions because it is_______. A. weak base B. an organic base C. a strong base
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2. 643 views