IB MYP Chemistry Mock Test 5 – 2026 Edition
IB MYP Chemistry Mock Test 5 – April/May 2026 Exam
IB MYP Chemistry Mock Test 5: Prepare for the MYP exams with subject-specific Prediction questions, model answers. All topics covered.
Prepared by MYP teachers: Access our IB MYP Chemistry Mock Test 5 Mock with model answer. Students: Practice with exam-style papers for MYP Exam
Question
Organic Chemistry – Esters
a) Identify the type of organic compound formed in the reaction between an alcohol and a carboxylic acid. [1 mark]
▶️Answer/Explanation
Marking Point: ester
Esters are formed in condensation reactions between alcohols and carboxylic acids, with the elimination of water.
R-COOH + R’-OH → R-COO-R’ + H₂O
b) Name the alcohol that would react with ethanoic acid to produce pentyl ethanoate. [1 mark]
▶️Answer/Explanation
Marking Point: pentanol / pentan-1-ol
The ester pentyl ethanoate is formed from ethanoic acid and pentanol (5 carbon alcohol).
CH₃COOH + C₅H₁₁OH → CH₃COOC₅H₁₁ + H₂O
c) Name the other product formed in esterification reactions besides the ester. [1 mark]
▶️Answer/Explanation
Marking Point: water
Esterification is a condensation reaction that always produces water as a byproduct.
Note: Do not accept H₂O because this is not the name (must be “water”).