09 Jun I having trouble with my homework. Can someone assist me?
Question
CHAPTER 9 ALDEHYDES AND KETONES
1. Which of the following statements is true?
a. Both aldehydes and ketones are easily oxidized.
b. Neither aldehydes nor ketones are easily oxidized.
c. Aldehydes are easily oxidized, but ketones are not.
d. Ketones are easily oxidized, but aldehydes are not.
2. Which of the following will give a positive test with Tollens’ reagent?
a. carboxylic acids
c. both a and b
b. ketones
d. neither a nor b
3. Which of the following compounds will undergo oxidation using potassium dichromate to form
a carboxylic acid?
a. A and B only
b. A and C only
c. B only
d. C only
4. Which of the following is obtained by oxidizing hexanal?
a. hexanol
b. 2-hexanone
c. hexanoic acid
d. none of these
5. Treatment of 2-hexanone with potassium dichromate in sulfuric acid will give which of the
following products?
a. hexanal
b. hexanol
c. hexanoic acid
d. Unreacted 2-hexanone will be recovered.
6. Which product will be formed by treatment of the following compound with silver nitrate and
ammonia in water, followed by acidification with HCl?
a.
c.
b.
d. None of these products would be
formed.
7. Which of the following compounds gives 1-pentanol upon reduction with H2/metal catalyst?
a.
c.
b.
d.
8. Which of the following is the acetal product that would be formed from the reaction of acetone
with 1-propanol?
a.
c.
b.
d.
9. Of the various OH groups in the following carbohydrate, how many are part of hemiacetal
functional groups?
a. 0
b. 1
c. 2
d. 3
10. Which of the following compounds is a tautomer of the following compound?
a.
b.
c. both a and b
d. neither a nor b
1. What is the IUPAC name for the following compound?
a. 3-amino-2-hydroxybenzoic acid
b. 5-amino-2-hydroxybenzoic acid
c. 3-carboxy-4-hydroxyaniline
d. 3-amino-6-hydroxybenzoic acid
2. Carboxylic acids can form hydrogen bonds with which of the following classes of compounds?
a. alcohols
b. aldehydes
c. ethers
d. all of these
3. Carboxylic acids do not form hydrogen bonds with which of the following classes of
compounds?
a.
b.
c.
d.
alcohols
ethers
alkanes
None, carboxylic acids form hydrogen bonds with all of these.
4. What would you expect is the order of water solubility for the following compounds:
a. A > B > C
b. C > A > B
c. B > A > C
d. A > C > B
5. Which type reaction is used to obtain fatty acids from animal fats?
a. hydrolysis
b. reduction
c. oxidation
d. substitution
6. What organic product will be formed when ammonium benzoate is treated with HCl?
a. ammonia
b. benzoyl ammonate
c. benzoic acid
d. benzoic ammonia
7. Which of the following compounds will react with sodium hydroxide to form a water-soluble
product?
a. hexanal
b. hexanoic acid
c. 1-hexene
d. all of these compounds
8. What type of compound is formed when a carboxylic acid reacts with an alcohol in the
presence of an acid catalyst?
a.
b.
c.
d.
ether
ester
either a or b, depending on the conditions
neither a nor b
9. Examine the following cut-away figure.
Which of the following correctly describes this structure?
a. The interior is polar and exterior is nonpolar.
b. It is insoluble in water.
c. Grease adheres to the exterior.
d. none of the above
10. Salicylic acid has the structure shown below.
Which of the following characterizes the organic product of the reaction of this substance with
KOH?
a. It is more soluble in water than salicylic acid
b. It is named as potassium salicylide
c. It eventually decomposes to produce carbon dioxide.
d. This substance will not react with KOH.
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