Chem 212 - Organic Chem for Science Majors » Summer 2021 » Midterm Exam 2
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Question #1
Complete hydrolysis of an alkyne except the first member of alkyne series results in ________________ .
A.
Enol
B.
Carboxylic Acid
C.
Aldehyde
D.
Ketone
Question #2
Treatment of a carbonyl group in aldehyde or ketone with a HCN followed by hydrolysis results in ________
A.
Hydroxy acid
B.
Amide
C.
Nitrile
D.
Amine
Question #3
Which compound produces benzylalcohol as a Grignard reaction product with C6H5MgCl/H2O?
A.
CO2
B.
Propanone
C.
Formaldehyde
D.
Acetaldehyde
Question #4
In which one of the following mixtures does a redox reaction occur?
A.
Ethanoyl chloride and ethanol
B.
Alkyl halide and aq. KOH
C.
Ethanoic acid and sodium hydroxide
D.
Ethanal and Tollens’ reagent
Question #5
Ibuprofen is a drug used as an alternative to aspirin for the relief of pain, fever and inflammation. The structure of ibuprofen is shown as [ CH3-CH(CH3)-CH2-(C6H5)-CH(CH3)-COOH]. Which one of the following statements is not correct?
A.
It liberates carbon dioxide with sodium carbonate solution.
B.
It undergoes oxidation with acidified K2Cr2O7
C.
It undergoes esterification with ethanol
D.
It has optical isomers.
Question #6
Which of the following is called an acyl group?
A.
R-CO-O-CO-
B.
= C = O
C.
R-CO-
D.
R-COO-
Question #7
Aldehydes and ketones are reduced by NaBH4 or LiAlH4 to yield ___________ and _________alcohols.
A.
1^o and 3^o
B.
2^o and 3^o
C.
2^o and 1^o
D.
1^o and 2^o
Question #8
A primary alcohol can be oxidized to which of the following?
A.
An aldehyde
B.
An aldehyde and a carboxylic acid
C.
A ketone and a carboxylic acid
D.
A carboxylic acid
Question #9
A carboxylic acid can be identified by which chemical test
A.
Iodoform test
B.
Hinsberg Test
C.
Tollen's test
D.
Baking soda test
Question #10
Which compound cannot undergo aldol condensation?
A.
Trichloroethanal
B.
Acetophenone
C.
Acetone
D.
Ethanal
Question #11
The general formula CnH2nO2 could be for open chain
A.
Carboxylic Acid and Ester
B.
only diols
C.
Only diketones
D.
Only Carboxylic acid
Question #12
Ester among the following is
A.
Calcium citrate
B.
None of them
C.
Sodium acetate
D.
Magnesiumlactate
Question #13
Equivalent mixture of CO2 and ethyl magnesium bromide reaction followed by hydrolysis must produce
A.
Propanol
B.
acetic acid
C.
Propanoic acid
D.
2-propanol
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