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Quiz about Organic Functional Groups and Classifications

Organic Functional Groups and Classifications Quiz

This is a quiz about identifying different organic functional groups and compound classifications.

A multiple-choice quiz by workisboring. Estimated time: 3 mins.

Author
workisboring

Time
3 mins

Type
Multiple Choice

Quiz #
347,104

Updated
Dec 03 21

# Qns
10

Difficulty
Average

Avg Score
7 / 10

Plays
753

One at a Time - Single Page - Timed Game

Question 1 of 10

1. What organic compounds are characterized by the general formula CnH2n+2? Hint

alkanes

alkynes

alkenes

aromatics

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Question 2 of 10

2. Which organic compounds are characterized as an unsaturated hydrocarbon containing a carbon-carbon double bond? Hint

arenes

alkanes

alkenes

alkynes

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Question 3 of 10

3. What is the name for a carbon that is double bonded to an oxygen? Hint

alcohol

acid

cation

carbonyl

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Question 4 of 10

4. Which of the following functional groups do not have a carbonyl group? Hint

Esters

Amides

Amines

Aldehydes

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Question 5 of 10

5. Which organic compounds are characterized by having a simple carbon-hydroxide functional group? Hint

aldehyde

carboxylic acid

alcohol

ketone

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Question 6 of 10

6. Which of these organic functional groups contains the element sulfur? Hint

ketone

thiols

ether

ester

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Question 7 of 10

7. Which functional group has a carbon-nitrogen double bond? Hint

amine

imine

nitro

nitrile

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Question 8 of 10

8. H�ckel's rule determines whether a ringed hydrocarbon will have aromatic properties. Which is not a criteria used in H�ckel's rule for a simple aromatic hydrocarbon? Hint

the hydrocarbon has 4n+2 pi electrons

the hydrocarbon contains at least one nitrogen or oxygen

the hydrocarbon is planar and cyclic

the hydrocarbon is fully conjugated

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Question 9 of 10

9. Amino acids are important biochemical compounds. Which organic functional groups do amino acids contain? Hint

carboxylic acid only

neither amine nor carboxylic acid

both amine and carboxylic acid

amine only

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Question 10 of 10

10. An acid anhydride can be hydrolyzed into a carboxylic acid and an aldehyde.

True

False

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Quiz Answer Key and Fun Facts

1. What organic compounds are characterized by the general formula CnH2n+2?

Answer: alkanes

Alkanes are saturated hydrocarbons and are the simplest hydrocarbon species. The carbons in alkanes have four single bonds. Methane, propane, butane and hexane are alkanes.

2. Which organic compounds are characterized as an unsaturated hydrocarbon containing a carbon-carbon double bond?

Answer: alkenes

Alkenes have the formula CnH2n. Ethylene and propylene are two common alkenes.

3. What is the name for a carbon that is double bonded to an oxygen?

Answer: carbonyl

A carbonyl is common to many other functional groups in organic chemistry. Aldehydes, ketones and esters contain a carbonyl.

4. Which of the following functional groups do not have a carbonyl group?

Answer: Amines

Amines are characterized by having a carbon-nitrogen bond. Amides have a carbonyl-nitrogen bond. Aldehydes have a carbonyl-hydrogen bond. Esters have a carbonyl-oxygen bond.

5. Which organic compounds are characterized by having a simple carbon-hydroxide functional group?

Answer: alcohol

Alcohols are characterized by the formula R-OH. Alcohols are in simple everyday household items such as rubbing alcohol and alcoholic beverages.

6. Which of these organic functional groups contains the element sulfur?

Answer: thiols

Thiols contain a carbon-sulfuryl bond. Thiols are also characterized by their strong odor.

7. Which functional group has a carbon-nitrogen double bond?

Answer: imine

An imine has a carbon-nitrogen double bond. An amine has a carbon-nitrogen single bond and a nitrile has a carbon-nitrogen triple bond. A nitro group has an oxygen-nitrogen double bond.

8. H�ckel's rule determines whether a ringed hydrocarbon will have aromatic properties. Which is not a criteria used in H�ckel's rule for a simple aromatic hydrocarbon?

Answer: the hydrocarbon contains at least one nitrogen or oxygen

The three criteria for H�ckel's rule are the hydrocarbon has 4n+2 pi electrons, the hydrocarbon is planar and cyclic and the hydrocarbon is fully conjugated. An aromatic hydrocarbon isn't required to contain nitrogen or oxygen. Some aromatic hydrocarbons do in fact contain nitrogen and/or oxygen such as trinitrotoulene (ie TNT.)

9. Amino acids are important biochemical compounds. Which organic functional groups do amino acids contain?

Answer: both amine and carboxylic acid

Amino acids are molecules which contain both a carboxylic acid and an amine group. Amino acids are used for building protiens and metabolism.

10. An acid anhydride can be hydrolyzed into a carboxylic acid and an aldehyde.

Answer: False

When an acid anhydride is hydrolyzed (split by adding a water molecule), it becomes two carboxylic acids.

Source: Author workisboring

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