NumicornNumicornLearn, solve, progress

Organic Chemistry: Introduction Practice Tests

These Grade 12 Science practice tests introduce organic chemistry through carbon structure, hydrocarbons, nomenclature, functional groups, isomerism, reactions, polymers, spectroscopy, chromatography, and laboratory safety.

Skills covered

  • Explaining carbon tetravalence, alkanes, alkenes, alkynes, aromatic compounds, polarity, hydrogen bonding, and structural isomerism
  • Applying parent-chain naming, substituents, locants, stereoisomer descriptions, common functional groups, and simple IUPAC names
  • Recognizing addition, substitution, elimination, oxidation, reduction, combustion, hydrolysis, polymerization, nucleophiles, and electrophiles
  • Identifying alcohols, aldehydes, ketones, carboxylic acids, esters, amines, amides, ethers, phenols, and dehydration synthesis
  • Using chromatography, infrared spectroscopy, NMR, distillation, green chemistry, mechanisms, and safe solvent handling

How to use these practice tests

Start with the carbon framework and functional groups, then identify how structure affects naming, polarity, intermolecular forces, and reaction behavior. Track electrons and bonds when analyzing mechanisms.

For more Grade 12 Science practice, return to the Grade 12 Science category.

Select a test

5 Tests
1. Test2. Test3. Test4. Test5. Test

3. Test

Grade 12 Organic Chemistry: Introduction Practice Tests

Practice Grade 12 Science questions about carbon bonding, hydrocarbons, nomenclature, functional groups, isomers, reactions, polymers, and organic analysis.

Choose the best answer. Relate molecular structure to naming, properties, reactivity, and analytical evidence, and follow safe laboratory practice.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

What happens in an addition reaction of an alkene?

Please select an answer first.

Correct answer: A

The correct answer is Atoms or groups add across the carbon–carbon double bond.

  1. Identify the organic chemistry concept: Determine whether the question concerns carbon structure, hydrocarbons, nomenclature, functional groups, reactions, polymers, or laboratory analysis.
  2. Apply the structural principle: The pi bond is converted into new sigma bonds as atoms or groups add to the two alkene carbons.
  3. Connect structure and reactivity: The correct answer is Atoms or groups add across the carbon–carbon double bond.

The pi bond is converted into new sigma bonds as atoms or groups add to the two alkene carbons.

2. QuestionMultiple choice

What is a substitution reaction?

Please select an answer first.

Correct answer: B

The correct answer is One atom or group in a molecule is replaced by another.

  1. Identify the organic chemistry concept: Determine whether the question concerns carbon structure, hydrocarbons, nomenclature, functional groups, reactions, polymers, or laboratory analysis.
  2. Apply the structural principle: Substitution replaces a leaving group or hydrogen with another atom or group while preserving the main framework.
  3. Connect structure and reactivity: The correct answer is One atom or group in a molecule is replaced by another.

Substitution replaces a leaving group or hydrogen with another atom or group while preserving the main framework.

3. QuestionMultiple choice

What is an elimination reaction?

Please select an answer first.

Correct answer: C

The correct answer is Atoms or groups are removed to form a multiple bond.

  1. Identify the organic chemistry concept: Determine whether the question concerns carbon structure, hydrocarbons, nomenclature, functional groups, reactions, polymers, or laboratory analysis.
  2. Apply the structural principle: Elimination commonly removes groups from adjacent atoms and creates a carbon–carbon double bond.
  3. Connect structure and reactivity: The correct answer is Atoms or groups are removed to form a multiple bond.

Elimination commonly removes groups from adjacent atoms and creates a carbon–carbon double bond.

4. QuestionMultiple choice

What can oxidation of a primary alcohol produce under suitable conditions?

Please select an answer first.

Correct answer: D

The correct answer is An aldehyde and, with further oxidation, a carboxylic acid.

  1. Identify the organic chemistry concept: Determine whether the question concerns carbon structure, hydrocarbons, nomenclature, functional groups, reactions, polymers, or laboratory analysis.
  2. Apply the structural principle: Primary alcohols can be oxidized first to aldehydes and then to carboxylic acids.
  3. Connect structure and reactivity: The correct answer is An aldehyde and, with further oxidation, a carboxylic acid.

Primary alcohols can be oxidized first to aldehydes and then to carboxylic acids.

5. QuestionMultiple choice

What is reduction in many organic reactions?

Please select an answer first.

Correct answer: A

The correct answer is Gain of hydrogen or loss of oxygen, often with a decrease in oxidation state.

  1. Identify the organic chemistry concept: Determine whether the question concerns carbon structure, hydrocarbons, nomenclature, functional groups, reactions, polymers, or laboratory analysis.
  2. Apply the structural principle: Organic reduction often changes functional groups by adding hydrogen or removing oxygen.
  3. Connect structure and reactivity: The correct answer is Gain of hydrogen or loss of oxygen, often with a decrease in oxidation state.

Organic reduction often changes functional groups by adding hydrogen or removing oxygen.

6. QuestionMultiple choice

What is polymerization?

Please select an answer first.

Correct answer: B

The correct answer is A process that links monomers into a larger polymer.

  1. Identify the organic chemistry concept: Determine whether the question concerns carbon structure, hydrocarbons, nomenclature, functional groups, reactions, polymers, or laboratory analysis.
  2. Apply the structural principle: Polymerization builds macromolecules through repeated bond formation between monomer units.
  3. Connect structure and reactivity: The correct answer is A process that links monomers into a larger polymer.

Polymerization builds macromolecules through repeated bond formation between monomer units.

7. QuestionMultiple choice

What are the typical products of complete hydrocarbon combustion?

Please select an answer first.

Correct answer: C

The correct answer is Carbon dioxide and water.

  1. Identify the organic chemistry concept: Determine whether the question concerns carbon structure, hydrocarbons, nomenclature, functional groups, reactions, polymers, or laboratory analysis.
  2. Apply the structural principle: With sufficient oxygen, carbon in the hydrocarbon forms carbon dioxide and hydrogen forms water.
  3. Connect structure and reactivity: The correct answer is Carbon dioxide and water.

With sufficient oxygen, carbon in the hydrocarbon forms carbon dioxide and hydrogen forms water.

8. QuestionMultiple choice

What is hydrolysis?

Please select an answer first.

Correct answer: D

The correct answer is Breaking a bond by reaction with water.

  1. Identify the organic chemistry concept: Determine whether the question concerns carbon structure, hydrocarbons, nomenclature, functional groups, reactions, polymers, or laboratory analysis.
  2. Apply the structural principle: Water participates in hydrolysis and can split bonds in esters, amides, and other functional groups.
  3. Connect structure and reactivity: The correct answer is Breaking a bond by reaction with water.

Water participates in hydrolysis and can split bonds in esters, amides, and other functional groups.

9. QuestionMultiple choice

What is a nucleophile?

Please select an answer first.

Correct answer: A

The correct answer is An electron-rich species that donates an electron pair to form a bond.

  1. Identify the organic chemistry concept: Determine whether the question concerns carbon structure, hydrocarbons, nomenclature, functional groups, reactions, polymers, or laboratory analysis.
  2. Apply the structural principle: Nucleophiles attack electron-poor centers using a lone pair or negative charge.
  3. Connect structure and reactivity: The correct answer is An electron-rich species that donates an electron pair to form a bond.

Nucleophiles attack electron-poor centers using a lone pair or negative charge.

10. QuestionMultiple choice

What is an electrophile?

Please select an answer first.

Correct answer: B

The correct answer is An electron-poor species that accepts an electron pair.

  1. Identify the organic chemistry concept: Determine whether the question concerns carbon structure, hydrocarbons, nomenclature, functional groups, reactions, polymers, or laboratory analysis.
  2. Apply the structural principle: Electrophiles are attracted to electron-rich regions and participate in bond formation by accepting electron density.
  3. Connect structure and reactivity: The correct answer is An electron-poor species that accepts an electron pair.

Electrophiles are attracted to electron-rich regions and participate in bond formation by accepting electron density.

Previous testNext test