IB Diploma Programme (DP) - SL & HL · Chemistry

Structure 3.2—Functional groups: Classification of organic compounds: Practice Questions

5 multiple-choice questions marked as you go, and 5 written questions with worked solutions. All on Structure 3.2—Functional groups: Classification of organic compounds.

10 questions24 marksFree, no account

Question 1

1 mark

Which of the following represents the general structure of an ether?

Question 2

1 mark

Which of the following statements regarding a homologous series is correct?

Question 3

1 mark

In which of the following compounds is the nitrogen atom classified as part of a secondary amine?

Question 4

1 mark

What is the IUPAC suffix used for a compound containing a carboxylic acid functional group?

Question 5

1 mark

Which functional group is defined by a nitrogen atom bonded directly to a carbon atom that is double-bonded to an oxygen atom?

Question 6

2 marks

Identify the specific class of organic compounds characterized by the presence of a carboxyl group.

Write your answer out first, then check it against the worked solution.

Question 7

3 marks

Identify the specific class of organic compounds and the name of the functional group present in a molecule with the structural formula \(CH_{3}CH_{2}CN\).

Write your answer out first, then check it against the worked solution.

Question 8

5 marks

Consider a molecule with the molecular formula \(C_2H_3N\). Identify the functional group present that allows this molecule to be classified as a nitrile, and provide its IUPAC name.

Write your answer out first, then check it against the worked solution.

Question 9

4 marks

Consider the organic compound with the condensed structural formula: $$CH_3CH(OH)CH_2COOH$$.

a) Identify and name all functional groups present in this molecule.

b) For each identified functional group, state the general class of organic compounds it characterizes.

Write your answer out first, then check it against the worked solution.

Question 10

5 marks

A student is analyzing an unknown organic compound with the molecular formula \( \text{C}_3\text{H}_6\text{O}_2 \).
a) The compound reacts with an alcohol in the presence of a catalyst to form an ester. Identify the functional group present in the original compound and provide its name. (1)
b) Draw the full structural formula for two possible isomers of \( \text{C}_3\text{H}_6\text{O}_2 \) that belong to different homologous series. (2)
c) Discuss the solubility of the carboxylic acid isomer in water compared to an alkane of similar molar mass. (2)

Write your answer out first, then check it against the worked solution.

* The content provided by thinka is generated by AI and may not always be accurate or up-to-date. Please use it as a supplementary resource and verify with official materials.

You've seen the model answer. Now get yours marked.

This page can show you how a good answer looks. It cannot tell you what your answer was missing. thinka marks your written work against the real mark scheme in about 15 seconds.

Get My Answers Marked Back to the notes

Want more questions like these? Get a fresh set on this topic, graded as you go.