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.
Ketone
B.
Enol
C.
Aldehyde
D.
Carboxylic Acid
Question #2
Treatment of a carbonyl group in aldehyde or ketone with a HCN followed by hydrolysis results in ________
A.
Nitrile
B.
Hydroxy acid
C.
Amine
D.
Amide
Question #3
Which compound produces benzylalcohol as a Grignard reaction product with C6H5MgCl/H2O?
A.
Propanone
B.
Acetaldehyde
C.
Formaldehyde
D.
CO2
Question #4
In which one of the following mixtures does a redox reaction occur?
A.
Ethanal and Tollens’ reagent
B.
Ethanoyl chloride and ethanol
C.
Ethanoic acid and sodium hydroxide
D.
Alkyl halide and aq. KOH
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 has optical isomers.
B.
It liberates carbon dioxide with sodium carbonate solution.
C.
It undergoes oxidation with acidified K2Cr2O7
D.
It undergoes esterification with ethanol
Question #6
Which of the following is called an acyl group?
A.
R-CO-
B.
= C = O
C.
R-COO-
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.
A carboxylic acid
C.
An aldehyde
D.
A ketone and a carboxylic acid
Question #9
A carboxylic acid can be identified by which chemical test
A.
Tollen's test
B.
Iodoform test
C.
Baking soda test
D.
Hinsberg Test
Question #10
Which compound cannot undergo aldol condensation?
A.
Acetone
B.
Trichloroethanal
C.
Acetophenone
D.
Ethanal
Question #11
The general formula CnH2nO2 could be for open chain
A.
Only Carboxylic acid
B.
only diols
C.
Carboxylic Acid and Ester
D.
Only diketones
Question #12
Ester among the following is
A.
Magnesiumlactate
B.
None of them
C.
Calcium citrate
D.
Sodium acetate
Question #13
Equivalent mixture of CO2 and ethyl magnesium bromide reaction followed by hydrolysis must produce
A.
2-propanol
B.
Propanoic acid
C.
Propanol
D.
acetic acid
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