Organic Chemistry Basics Test

Test your understanding of fundamental organic chemistry concepts

Time: 30 minutes

20 Questions

Willer Academy

Time Left: 30:00

Student Test

Organic Chemistry Assessment

1

What property of carbon allows it to form long chains and rings?

Tetravalency Electronegativity Ionization energy Atomic radius

2

Which of the following is the general formula for alkenes?

C_nH_2n+2 C_nH_2n C_nH_2n-2 C_nH_n

3

Which functional group is present in carboxylic acids?

-OH -CHO -COOH -NH₂

4

What is the correct IUPAC name for CH₃CH₂CH₂OH?

Methanol Ethanol Propanol Butanol

5

Which type of isomerism is shown by CH₃CH₂CHO and CH₃COCH₃?

Chain isomerism Position isomerism Functional group isomerism Geometrical isomerism

6

What type of reaction is CH₂=CH₂ + HBr → CH₃CH₂Br?

Substitution Addition Elimination Oxidation

7

What is an electrophile?

Electron-deficient species Electron-rich species Neutral species Species with paired electrons

8

Which of the following is NOT a hydrocarbon?

Benzene Ethanol Propane Butene

9

What is the bond angle in a carbon atom with tetrahedral geometry?

90° 109.5° 120° 180°

10

Which prefix is used for a compound with a chlorine substituent?

Fluoro- Chloro- Bromo- Iodo-

11

What is the main reason for the large number of organic compounds?

Carbon's ability to form isomers Carbon's catenation property Presence of functional groups All of the above

12

Which compound is an example of an alkyne?

Ethane Ethene Ethyne Ethanol

13

Which suffix is used for aldehydes in IUPAC naming?

-ol -al -one -oic acid

14

What is the process called when a small molecule is removed to form a double bond?

Substitution Addition Elimination Oxidation

15

Which of the following is a nucleophile?

H⁺ BF₃ NH₃ AlCl₃

16

Name the compound: CH₃CH₂CH₂COOH

17

What is the molecular formula for benzene?

18

Name the functional group: -CHO

19

What type of fission occurs in heterolytic bond breaking?

20

What is the IUPAC name for CH₃-CHCl-CH₃?

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