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.
Aldehyde
B.
Ketone
C.
Carboxylic Acid
D.
Enol
Question #2
Treatment of a carbonyl group in aldehyde or ketone with a HCN followed by hydrolysis results in ________
A.
Amine
B.
Hydroxy acid
C.
Nitrile
D.
Amide
Question #3
Which compound produces benzylalcohol as a Grignard reaction product with C6H5MgCl/H2O?
A.
CO2
B.
Propanone
C.
Acetaldehyde
D.
Formaldehyde
Question #4
In which one of the following mixtures does a redox reaction occur?
A.
Alkyl halide and aq. KOH
B.
Ethanal and Tollens’ reagent
C.
Ethanoic acid and sodium hydroxide
D.
Ethanoyl chloride and ethanol
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 undergoes esterification with ethanol
B.
It liberates carbon dioxide with sodium carbonate solution.
C.
It has optical isomers.
D.
It undergoes oxidation with acidified K2Cr2O7
Question #6
Which of the following is called an acyl group?
A.
R-CO-O-CO-
B.
R-COO-
C.
= C = O
D.
R-CO-
Question #7
Aldehydes and ketones are reduced by NaBH4 or LiAlH4 to yield ___________ and _________alcohols.
A.
1^o and 2^o
B.
2^o and 3^o
C.
2^o and 1^o
D.
1^o and 3^o
Question #8
A primary alcohol can be oxidized to which of the following?
A.
A ketone and a carboxylic acid
B.
An aldehyde
C.
An aldehyde and a carboxylic acid
D.
A carboxylic acid
Question #9
A carboxylic acid can be identified by which chemical test
A.
Hinsberg Test
B.
Iodoform test
C.
Tollen's test
D.
Baking soda test
Question #10
Which compound cannot undergo aldol condensation?
A.
Trichloroethanal
B.
Acetone
C.
Ethanal
D.
Acetophenone
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.
Sodium acetate
B.
Magnesiumlactate
C.
Calcium citrate
D.
None of them
Question #13
Equivalent mixture of CO2 and ethyl magnesium bromide reaction followed by hydrolysis must produce
A.
Propanoic acid
B.
2-propanol
C.
Propanol
D.
acetic acid
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