Chem 212 - Organic Chem for Science Majors » Summer 2021 » Final Exam
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Question #1
Which combination of reagents used in the indicated order with benzene will give m-nitroethylbenzen?
A.
(i) HNO3/H2SO4, (ii) CH3CH2Cl/AlCl3, (iii) H2NNH2/NaOH
B.
( i) CH3CH2Cl/AlCl3, (ii) HNO3/H2SO4
C.
(i) HNO3/H2SO4 (ii) CH3CH2Cl/AlCl3
D.
(i) CH3COCl/AlCl3, (ii) HNO3/H2SO4, (iii) H2NNH2/NaOH
Question #2
Which gives a meta-substituted compound as the main product upon nitration with a nitric acid-sulfuric acid mixture?
A.
Ethylbenzene
B.
Acetophenone
C.
Chlorobenzene
D.
Anisole
Question #3
What is the main product when acid anhydride is hydrolyzed?
A.
Ketone
B.
Carboxylic acid
C.
Alcohols
D.
Aldehyde
Question #4
Which of the following compounds would be converted to acetic anhydride when treated with sodium acetate?
A.
Acetaldehyde
B.
Methyl acetate
C.
Acetyl chloride
D.
Acetamide
Question #5
What will be the reactivity order of the following with water?
A.
amide > ester > acid anhydride > acid halide
B.
acid halide > acid anhydride > ester > amide
C.
acid anhydride > amide > acid halide > ester
D.
acid halide > ester > acid anhydride > amide acid halide
Question #6
Which of the following is used as a reactant for the nitration of benzene to form nitrobenzene?
A.
Mixture of HNO2 and H2SO3
B.
Conc. HNO3
C.
Mixture of HNO3 and H2SO4
D.
Mixture of HNO2 and HNO3
Question #7
The ester produced from the reaction of ethanoic acid with benzyl alcohol is called………..
A.
Benzylethanoate
B.
Ethylbenzoate
C.
Ethylphenoate
D.
Phenylethanoate
Question #8
Treatment of a nitrile group with a Grignard’s reagent followed by hydrolysis results in …….
A.
Aldehyde
B.
An ester
C.
A ketone
D.
Alcohol
Question #9
Predict the product of the following reaction. Benzenediazonium chloride + CuCN →
A.
Ph2CuLi
B.
Ph–CN
C.
Ph2CuCl
D.
Ph–N=N–CN
Question #10
Predict the product of the following reaction. Cyclohexanone + Et2NH + NaBH4 →
A.
N,Ndiethylaniline
B.
N,N-dimethylcyclohexylamine
C.
N,Ndiethylcyclohexanamine
D.
Et2N–CN
Question #11
Predict the product of the following reaction. Ph–CH2–CN + LiAlH4, Et2O →
A.
Ph–CH2–CH2–NH2
B.
Ph–CH2–NH2
C.
N,N-dimethylaniline
D.
benzyl ethyl ether
Question #12
Nitration of methylbenzene produces
A.
m-nitrotoluene
B.
o and p-nitrotoluene
C.
Nitrobenzene
D.
TNT
Question #13
What is the name of the compound C6H5N(CH3)2? (a) dimethylbenzylamine (b) N,N-dimethyltoluene (c) N,N-dimethylaniline (d) dimethylphenolamine
A.
d
B.
a
C.
Carboxylic acid
D.
b
Question #14
Predict the product of the following reaction, Et2NH + NaNO2/HCl → (a) Et–N=N–Cl (b) Et2N–N=O (c) Et–N2+ (d) Et–N=N–OH
A.
Et–N2+
B.
Et–N=N–OH
C.
Et–N=N–Cl
D.
Et2N–N=O
Question #15
Nitration of benzamide produces
A.
m-Nitrobenzamide
B.
m-Nitroamide
C.
o and p-Nitrobenzamide
D.
TNT
Question #16
Wolf-Kishner’s reduction of propanone with hydrazine and aq. KOH results in the formation of
A.
Propane
B.
Ethane
C.
2-propanol
D.
Propanal
Question #17
The water solubility of aniline increases in case of adding:
A.
HCl
B.
NH3
C.
NaOH
D.
CH3Cl
Question #18
Urea is transformed, by hydrolysis, in:
A.
H–COOH + NH3
B.
CO2 + NH3
C.
CO + NH3
D.
urea does not hydrolyze
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