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Alkenes Trivia Quiz

This is a quiz on the alkenes, their reactions and products. Enjoy :)

A multiple-choice quiz by NigK. Estimated time: 4 mins.

Author
NigK

Time
4 mins

Type
Multiple Choice

Quiz #
312,576

Updated
Dec 03 21

# Qns
10

Difficulty
Average

Avg Score
7 / 10

Plays
1724

Question 1 of 10

1. Hydrocarbons are arranged in different groups: alkanes, alkenes, alkynes, and cycloalkanes. Alkenes are aromatic hydrocarbons.

True

False

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Question 2 of 10

2. What is the functional group of an alkene? Hint

carbon-carbon double covalent bond

carbon-carbon triple covalent bond

carbon-carbon single covalent bond

ionic bonds

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Question 3 of 10

3. Which of the following alkenes doesn't exist? Hint

pentene

octene

methene

butene

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Question 4 of 10

4. By which of the following reactions do you obtain ethane from ethene (ethylene)? Hint

Hydration

Substitution

Addition of Chlorine

Hydrogenation (Addition of Hydrogen)

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Question 5 of 10

5. When ethene (ethylene) undergoes a chemical reaction with water in the presence of sulfuric acid, it produces a compound (A).
What exactly is the compound (A)? Hint

methanol (methyl alcohol)

ethanol (ethyl alcohol)

acetic acid

ethane

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Question 6 of 10

6. Sometimes we can obtain alcohol from an alkene. What is the functional group of any alcohol? Hint

carboxyl functional group

None of these

carbon-carbon single covalent bond

hydroxyl group

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Question 7 of 10

7. An alcohol reacts with acetic acid to produce two compounds.
What is the chemical name of acetic acid? Hint

methanoic acid

None of these

vinegar

ethanoic acid

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Question 8 of 10

8. When ethanol (ethyl alcohol) undergoes a reaction with acetic acid, it produces an ester and a compound (B).
What is the name of the compound (B)? Hint

water

methyl alcohol (methanol)

methanoic acid

None of these

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Question 9 of 10

9. Esters are compounds that are used in industry. What is (are) its use(s)? Hint

flavor and odor

preservative

insecticidal

all of these

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Question 10 of 10

10. Ethanol (ethyl alcohol), ester, and acetic acid contain both carbon and hydrogen atoms, but are they hydrocarbons? Hint

Yes, since they are produced by hydrocarbons.

No, because they contain the atom oxygen.

No, because hydrocarbons are only of three kinds.

No, because hydrocarbons don't have functional groups, while these compounds do.

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Quiz Answer Key and Fun Facts

1. Hydrocarbons are arranged in different groups: alkanes, alkenes, alkynes, and cycloalkanes. Alkenes are aromatic hydrocarbons.

Answer: False

All the mentioned hydrocarbons are aliphatic hydrocarbons.

2. What is the functional group of an alkene?

Answer: carbon-carbon double covalent bond

There is a double bond between any two carbon atoms.

3. Which of the following alkenes doesn't exist?

Answer: methene

It is methene because methane has only one carbon atom, and therefore there cannot be a double covalent bond between the carbon atoms.

4. By which of the following reactions do you obtain ethane from ethene (ethylene)?

Answer: Hydrogenation (Addition of Hydrogen)

It is the addition of hydrogen (hydrogenation) because when we add H2 to C2H4 (ethylene) we obtain C2H6 (ethane).

5. When ethene (ethylene) undergoes a chemical reaction with water in the presence of sulfuric acid, it produces a compound (A). What exactly is the compound (A)?

Answer: ethanol (ethyl alcohol)

According to the following reaction:
C2H4 + H2O ---> C2H5OH (C2H6O)
where ethylene takes one hydrogen atom from water and the rest (-OH) is the functional group of any alcohol.

6. Sometimes we can obtain alcohol from an alkene. What is the functional group of any alcohol?

Answer: hydroxyl group

The (-OH) in an alcohol stands for hydroxyl.

7. An alcohol reacts with acetic acid to produce two compounds. What is the chemical name of acetic acid?

Answer: ethanoic acid

Vinegar is the official name that everyone uses.

8. When ethanol (ethyl alcohol) undergoes a reaction with acetic acid, it produces an ester and a compound (B). What is the name of the compound (B)?

Answer: water

By this reaction, ester and water are produced.

9. Esters are compounds that are used in industry. What is (are) its use(s)?

Answer: flavor and odor

With these compounds, we can produce products with taste (flavor) and odor.

10. Ethanol (ethyl alcohol), ester, and acetic acid contain both carbon and hydrogen atoms, but are they hydrocarbons?

Answer: No, because they contain the atom oxygen.

No, they are not hydrocarbons because hydrocarbons are compounds made up of carbon and hydrogen only, while the other compounds listed above contain the atom oxygen.

Source: Author NigK

This quiz was reviewed by FunTrivia editor crisw before going online.
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