Organic Chemistry
Organic Chemistry
1. When an organic compound W reacts with hydrogen in the presence of a nickel catalyst, propane is formed. What could W be?
A propanol
B ethane
C propene
D ethanol
2. When an organic compound X is exposed to air, butanoic acid is formed.
What could X be?
A butane
B ethyl ethanoate
C 1-butene
D butanol
3. If the substance CH2 = CHCH = CHCH = CH2 was reacted with excess hydrogen in the presence of a catalyst until no further reaction took place, what would be the product?
A hexanol
B hexane
C 1-hexene
D propane
4. Warming with acidified potassium manganate(VII) can be used to identify
A ethanol
B ethanoic acid
C ethyl ethanoate
D chloroethane
5. Which one of the following compounds hydrolyses to form ethanoic acid?
A methyl propanoate
B ethyl ethanoate
C methanoic acid
D methanol
6. One use of methanol is
A in the manufacture of beer.
B as a solvent.
C as an oxidizing agent.
D to make plastic containers.
7. A large organic compound has molecular formula C40H80. Which homologous series is it most likely to belong to?
A alkane
B alkene
C ester
D alcohol
8. When propanol is warmed with an organic compound B together with concentrated sulfuric acid, propyl propanoate is formed.
What is B?
A propene
B propane
C propanoic acid
D methanoic acid
9. Methane, ethane, propane and butane are all gases at 200oC. Which gas has the weakest intermolecular forces attraction at the stated temperature?
A Methane
B Ethane
C Propane
D Butane
10. Which statement is correct about nylon?
A the monomers used are carboxylic acids and alcohols.
B it is formed by addition polymerization.
C Water molecules are eliminated in the process of polymerization.
D Hydrogen chloride molecules are eliminated in the process of polymerization.
11. Which statement is correct about poly(chloroethene) (PVC)?
A It is formed from the monomer chloroethane.
B It is an addition polymer.
C Small molecules are eliminated in the process of polymerization.
D It is a macromolecule which conducts electricity like graphite.
12. What are the products when butanoic acid reacts with zinc?
A Zinc butanoate and water
B No reaction is observed.
C Zinc butanoate and hydrogen gas.
D Zinc butanoate, water and carbon dioxide gas.
13. When large alkane molecules are cracked, what molecules are usually produced?
A only alkene molecules are produced.
B a mixture of hydrogen, alkanes and alkenes are produced.
C soot and hydrogen gas are produced.
D alkenes and hydrogen gas are produced.
14. What are the main products when bromine reacts with methane?
A bromomethane and hydrogen
B bromomethane and hydrogen bromide
C dibromomethane and hydrogen
D tribromomethane and tetrabromomethane
15. Which molecular formula represents an unsaturated hydrocarbon?
A C4H10
B C4H9Br
C C2H6O
D C5H10
Answers:
1.C
2.D
3.B
4.A
5.B
6.B
7.B
8.C
9.A
10.C
11.B
12.C
13.B
14.B
15.D
1. When an organic compound W reacts with hydrogen in the presence of a nickel catalyst, propane is formed. What could W be?
A propanol
B ethane
C propene
D ethanol
2. When an organic compound X is exposed to air, butanoic acid is formed.
What could X be?
A butane
B ethyl ethanoate
C 1-butene
D butanol
3. If the substance CH2 = CHCH = CHCH = CH2 was reacted with excess hydrogen in the presence of a catalyst until no further reaction took place, what would be the product?
A hexanol
B hexane
C 1-hexene
D propane
4. Warming with acidified potassium manganate(VII) can be used to identify
A ethanol
B ethanoic acid
C ethyl ethanoate
D chloroethane
5. Which one of the following compounds hydrolyses to form ethanoic acid?
A methyl propanoate
B ethyl ethanoate
C methanoic acid
D methanol
6. One use of methanol is
A in the manufacture of beer.
B as a solvent.
C as an oxidizing agent.
D to make plastic containers.
7. A large organic compound has molecular formula C40H80. Which homologous series is it most likely to belong to?
A alkane
B alkene
C ester
D alcohol
8. When propanol is warmed with an organic compound B together with concentrated sulfuric acid, propyl propanoate is formed.
What is B?
A propene
B propane
C propanoic acid
D methanoic acid
9. Methane, ethane, propane and butane are all gases at 200oC. Which gas has the weakest intermolecular forces attraction at the stated temperature?
A Methane
B Ethane
C Propane
D Butane
10. Which statement is correct about nylon?
A the monomers used are carboxylic acids and alcohols.
B it is formed by addition polymerization.
C Water molecules are eliminated in the process of polymerization.
D Hydrogen chloride molecules are eliminated in the process of polymerization.
11. Which statement is correct about poly(chloroethene) (PVC)?
A It is formed from the monomer chloroethane.
B It is an addition polymer.
C Small molecules are eliminated in the process of polymerization.
D It is a macromolecule which conducts electricity like graphite.
12. What are the products when butanoic acid reacts with zinc?
A Zinc butanoate and water
B No reaction is observed.
C Zinc butanoate and hydrogen gas.
D Zinc butanoate, water and carbon dioxide gas.
13. When large alkane molecules are cracked, what molecules are usually produced?
A only alkene molecules are produced.
B a mixture of hydrogen, alkanes and alkenes are produced.
C soot and hydrogen gas are produced.
D alkenes and hydrogen gas are produced.
14. What are the main products when bromine reacts with methane?
A bromomethane and hydrogen
B bromomethane and hydrogen bromide
C dibromomethane and hydrogen
D tribromomethane and tetrabromomethane
15. Which molecular formula represents an unsaturated hydrocarbon?
A C4H10
B C4H9Br
C C2H6O
D C5H10
Answers:
1.C
2.D
3.B
4.A
5.B
6.B
7.B
8.C
9.A
10.C
11.B
12.C
13.B
14.B
15.D
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