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.
Aldehyde
C.
Carboxylic Acid
D.
Ketone
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.
Ethanal and Tollens’ reagent
B.
Ethanoic acid and sodium hydroxide
C.
Alkyl halide and aq. KOH
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 has optical isomers.
C.
It undergoes oxidation with acidified K2Cr2O7
D.
It liberates carbon dioxide with sodium carbonate solution.
Question #6
Which of the following is called an acyl group?
A.
= C = O
B.
R-COO-
C.
R-CO-
D.
R-CO-O-CO-
Question #7
Aldehydes and ketones are reduced by NaBH4 or LiAlH4 to yield ___________ and _________alcohols.
A.
2^o and 3^o
B.
1^o and 2^o
C.
1^o and 3^o
D.
2^o and 1^o
Question #8
A primary alcohol can be oxidized to which of the following?
A.
An aldehyde and a carboxylic acid
B.
An aldehyde
C.
A ketone and a carboxylic acid
D.
A carboxylic acid
Question #9
A carboxylic acid can be identified by which chemical test
A.
Hinsberg Test
B.
Baking soda test
C.
Iodoform test
D.
Tollen's test
Question #10
Which compound cannot undergo aldol condensation?
A.
Acetophenone
B.
Acetone
C.
Trichloroethanal
D.
Ethanal
Question #11
The general formula CnH2nO2 could be for open chain
A.
Only diketones
B.
only diols
C.
Only Carboxylic acid
D.
Carboxylic Acid and Ester
Question #12
Ester among the following is
A.
None of them
B.
Sodium acetate
C.
Calcium citrate
D.
Magnesiumlactate
Question #13
Equivalent mixture of CO2 and ethyl magnesium bromide reaction followed by hydrolysis must produce
A.
acetic acid
B.
2-propanol
C.
Propanoic acid
D.
Propanol
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