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Quiz about Organic Chemistry
Quiz about Organic Chemistry

Organic Chemistry Trivia Quiz


This quiz will test your knowledge of aspects of organic chemistry, including alkanes and alkenes, aromatic chemistry, functional groups and general synthesis.

A multiple-choice quiz by NatalieW. Estimated time: 3 mins.
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Author
NatalieW
Time
3 mins
Type
Multiple Choice
Quiz #
47,144
Updated
Dec 03 21
# Qns
10
Difficulty
Tough
Avg Score
6 / 10
Plays
9680
Awards
Top 35% Quiz
Last 3 plays: Guest 24 (3/10), Guest 210 (5/10), Guest 174 (10/10).
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Question 1 of 10
1. What is the general formula for an alkane? Hint


Question 2 of 10
2. What is the general formula for an alkene? Hint


Question 3 of 10
3. The chemical formula for benzene is: Hint


Question 4 of 10
4. The benzene ring is stable due to: Hint


Question 5 of 10
5. The most common reaction of benzene and its derivatives is: Hint


Question 6 of 10
6. In the laboratory, which two classes of compound may be reacted together without any other activating reagents to prepare an amide? Hint


Question 7 of 10
7. What is the general name of a reaction used to make alkenes? Hint


Question 8 of 10
8. The general formula for an ester is: Hint


Question 9 of 10
9. The reaction between an aldehyde and a ketone, catalysed by a base, is known as: Hint


Question 10 of 10
10. A molecule containing the unit R-O-R (where R is any carbon chain) is known as: Hint



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Most Recent Scores
Apr 06 2024 : Guest 24: 3/10
Apr 06 2024 : Guest 210: 5/10
Apr 03 2024 : Guest 174: 10/10
Mar 29 2024 : Guest 62: 6/10
Mar 07 2024 : jonnowales: 7/10
Mar 01 2024 : Guest 84: 6/10
Feb 29 2024 : Guest 165: 8/10
Feb 29 2024 : Nhoj_too: 8/10
Feb 23 2024 : Guest 75: 1/10

Score Distribution

quiz
Quiz Answer Key and Fun Facts
1. What is the general formula for an alkane?

Answer: CnH(2n+2)

Alkanes are known as 'saturated' hydrocarbons. The word 'hydrocarbon' is derived from the two elements that make up alkanes - hydrogen and carbon. Alkanes are known as saturated because they contain only carbon-carbon and carbon-hydrogen single bonds and thus contain the maximum number of hydrogens per carbon.
2. What is the general formula for an alkene?

Answer: CnH2n

Alkenes are known as 'unsaturated' hydrocarbons and contain a carbon-carbon double bond.
3. The chemical formula for benzene is:

Answer: C6H6

Benzene was discovered in 1825 by Michael Faraday. Benzene and its simpler derivatives were first described as 'aromatic' compounds because they all have distinctive odours.
4. The benzene ring is stable due to:

Answer: Conjugation

A conjugated molecule, like benzene, contains alternating single and double (or triple) bonds.
5. The most common reaction of benzene and its derivatives is:

Answer: Electrophilic substitution

Aromatic compounds undergo substitution rather than addition in order to retain the stable conjugated system, which would be broken if addition took place.
6. In the laboratory, which two classes of compound may be reacted together without any other activating reagents to prepare an amide?

Answer: Acid chloride and amine

Amides can't be made from amines and carboxylic acids in the laboratory because they will undergo an acid-base reaction to give a carboxylate anion and an ammonium salt.
7. What is the general name of a reaction used to make alkenes?

Answer: Elimination

Alkenes are commonly made by reacting an alkyl chloride or an alcohol with a base, resulting in the formation of an alkene by the elimination of hydrogen chloride or water respectively.
8. The general formula for an ester is:

Answer: RCOOR

RCOR is the general formula for a {ketone;} RCONH2 is the general formula for an amide and R-OH is the general formula for an alcohol. Esters can be made by reacting an acid chloride with an alcohol. They may also be prepared by heating an excess of an alcohol with a carboxylic acid in the presence of an acid or base catalyst.
9. The reaction between an aldehyde and a ketone, catalysed by a base, is known as:

Answer: Aldol reaction

The aldol reaction is used to make beta-hydroxy carbonyl compounds. These compounds may then be converted to alpha,beta-unsaturated carbonyl compounds, which are very useful intermediates in organic synthesis.
10. A molecule containing the unit R-O-R (where R is any carbon chain) is known as:

Answer: an ether

Ethers have the general formula R-O-R. Diethyl ether (where R = -CH2CH3) was used as an anaesthetic.
Source: Author NatalieW

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