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Quiz about Organic Functional Groups and Classifications
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.
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Author
workisboring
Time
3 mins
Type
Multiple Choice
Quiz #
347,104
Updated
Dec 03 21
# Qns
10
Difficulty
Average
Avg Score
7 / 10
Plays
748
- -
Question 1 of 10
1. What organic compounds are characterized by the general formula CnH2n+2? Hint


Question 2 of 10
2. Which organic compounds are characterized as an unsaturated hydrocarbon containing a carbon-carbon double bond? Hint


Question 3 of 10
3. What is the name for a carbon that is double bonded to an oxygen? Hint


Question 4 of 10
4. Which of the following functional groups do not have a carbonyl group? Hint


Question 5 of 10
5. Which organic compounds are characterized by having a simple carbon-hydroxide functional group? Hint


Question 6 of 10
6. Which of these organic functional groups contains the element sulfur? Hint


Question 7 of 10
7. Which functional group has a carbon-nitrogen double bond? Hint


Question 8 of 10
8. Hückel's rule determines whether a ringed hydrocarbon will have aromatic properties. Which is not a criteria used in Hückel's rule for a simple aromatic hydrocarbon? Hint


Question 9 of 10
9. Amino acids are important biochemical compounds. Which organic functional groups do amino acids contain? Hint


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



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quiz
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. Hückel's rule determines whether a ringed hydrocarbon will have aromatic properties. Which is not a criteria used in Hückel's rule for a simple aromatic hydrocarbon?

Answer: the hydrocarbon contains at least one nitrogen or oxygen

The three criteria for Hückel'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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