Home / iGCSE Chemistry Multiple Choice (Extended) : 11.2 Naming organic compounds: Exam Style Questions Paper 2

iGCSE Chemistry Multiple Choice (Extended) : 11.2 Naming organic compounds: Exam Style Questions Paper 2

iGCSE Chemistry MCQ (Extended) Paper 2 - All Chapters
Question

The structure of an organic compound is shown.

What is the name of the compound?

A) chloroethane
B) chloroethene
C) chloroethanol
D) chloroethanoic acid

▶️ Answer/Explanation
Solution

Ans: A

The structure shows a two-carbon chain with single bonds (ethane) with one chlorine substituent:

CH3-CH2Cl

This is chloroethane. Key points:

– It’s not an alkene (no double bond) so not chloroethene

– No OH group present (rules out chloroethanol)

– No carboxyl group (rules out chloroethanoic acid)

The correct IUPAC name is chloroethane.

Question

 Which structure is correctly named?

Answer/Explanation

Ans:

C

Question

 Some properties of an organic compound J are listed.
● It is a liquid at room temperature.
● It is soluble in water.
● A solution of J reacts with calcium carbonate to form carbon dioxide.
● A solution of J has a pH of 3.
In which homologous series does J belong?

A alkane

B alkene

C alcohol

D carboxylic acid

▶️Answer/Explanation

Ans:D

Question

When the alcohol \(CH_3CH_2CH_2OH\)  reacts with the carboxylic acid \(CH_3CH_2CH_2COOH\) an ester is formed.

What is the name and structural formula of this ester?

Answer/Explanation

Ans:D

More iGCSE Chemistry Paper 2 Questions.............
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