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HomeCXC CSEC ChemistryCarboxylic Acids and Esters
CXC · CSEC · Chemistry

Carboxylic Acids and Esters
Practice Questions

20 CXC CSEC Chemistry questions on Carboxylic Acids and Esters, each with instant feedback and a full examiner-style mark scheme.

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Try 2 sample questions on Carboxylic Acids and Esters

Question 1 · 1 mark · Difficulty 1/3

A student in a Barbados laboratory heated ethanoic acid with propanol in the presence of concentrated sulfuric acid. Which type of organic compound was formed?

  1. An alcohol
  2. An ester
  3. A ketone
  4. An alkene
Show answer & explanation
✓ Answer: BAn ester
Award 1 mark for correctly identifying that a carboxylic acid reacting with an alcohol in the presence of concentrated sulfuric acid produces an ester through esterification. A is incorrect because an alcohol is a reactant, not a product. C is incorrect because ketones are formed by oxidation of secondary alcohols. D is incorrect because alkenes are formed by dehydration of alcohols, not esterification.
Question 2 · 1 mark · Difficulty 2/3

Which of the following correctly describes why vinegar, which contains ethanoic acid, is used as a preservative in Guyanese pepper sauce?

  1. It provides a neutral pH that prevents bacterial growth
  2. It creates an acidic environment that inhibits microbial growth
  3. It removes all oxygen needed by bacteria
  4. It increases the temperature to kill bacteria
Show answer & explanation
✓ Answer: BIt creates an acidic environment that inhibits microbial growth
Award 1 mark for correctly explaining that ethanoic acid lowers the pH, creating acidic conditions that prevent or slow the growth of most bacteria and fungi. A is incorrect because vinegar provides an acidic, not neutral, pH. C is incorrect because vinegar does not remove oxygen. D is incorrect because vinegar does not increase temperature.
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20 questions · 25 min · free

CXC CSEC Chemistry: Carboxylic Acids and Esters FAQ

How many CXC CSEC Chemistry questions on Carboxylic Acids and Esters are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Carboxylic Acids and Esters for CXC CSEC Chemistry, with new questions added every week. Each question gives you instant feedback and a full examiner-style mark scheme that tells you exactly what would earn marks on a real CXC paper. The questions span the full difficulty range — from straightforward recall (level 1) right up to multi-step reasoning and evaluation (level 3) — so the bank works for first-pass revision and final exam-week stress testing alike.
Is Kramizo free for CXC CSEC students preparing for Chemistry?
Yes — completely free. Every student gets 45 questions a day on the free plan, with no card required and no trial countdown. That free quota works across every subject and every topic in our bank, so you can mix Carboxylic Acids and Esters practice with other Chemistry topics or even switch to a totally different CXC subject without paying anything. Kramizo's optional Pro plan removes the daily cap and adds detailed progress analytics, but the free tier is the real product — used by thousands of GCSE, IGCSE and CSEC students.
Are the Carboxylic Acids and Esters questions aligned to the official CXC CSEC Chemistry syllabus?
Every question is written against the published CXC CSEC Chemistry specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real CXC paper. Explanations are written in the style of official examiner mark schemes — they tell you what is being awarded marks and why distractors are wrong, not just whether you got it right. The bank is continually refined to match the latest syllabus updates from CXC.
How is Carboxylic Acids and Esters typically tested on CXC CSEC Chemistry papers?
Carboxylic Acids and Esters appears across multiple question types on real CXC CSEC Chemistry papers — most commonly as multiple-choice questions in the objective section, structured short-answer questions in the main paper, and occasionally as part of an extended response. Kramizo's practice bank reflects that mix: 4-option MCQs, true/false statements, fill-in-the-blank key terms, multi-select questions, and ordering questions. Working through the bank gives you exposure to every question style examiners actually use.

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