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HomeCIE IGCSE ChemistryPreparation of salts (precipitation, titration, reaction of acid with metal/carbonate/base)
CIE · IGCSE · Chemistry

Preparation of salts (precipitation, titration, reaction of acid with metal/carbonate/base)
Practice Questions

20 CIE IGCSE Chemistry questions on Preparation of salts (precipitation, titration, reaction of acid with metal/carbonate/base), each with instant feedback and a full examiner-style mark scheme.

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Try 2 sample questions on Preparation of salts (precipitation, titration, reaction of acid with metal/carbonate/base)

Question 1 · 1 mark · Difficulty 1/3

A farmer in Indonesia needs to neutralise acidic soil using calcium carbonate (limestone). The reaction produces a salt, water and a gas. What is the name of the salt produced when calcium carbonate neutralises sulfuric acid in the soil?

  1. Calcium chloride
  2. Calcium nitrate
  3. Calcium sulfate
  4. Calcium hydroxide
Show answer & explanation
✓ Answer: CCalcium sulfate
Award 1 mark for calcium sulfate. The reaction between calcium carbonate and sulfuric acid produces calcium sulfate, water and carbon dioxide. A is incorrect — calcium chloride is formed with hydrochloric acid. B is incorrect — calcium nitrate is formed with nitric acid. D is incorrect — calcium hydroxide is a base, not a salt, and is not a product of this reaction.
Question 2 · 1 mark · Difficulty 2/3

A student wants to prepare a pure, dry sample of copper(II) sulfate crystals from copper(II) oxide and dilute sulfuric acid. Which method should the student use?

  1. Add excess copper(II) oxide to the acid, filter, then evaporate the filtrate to dryness
  2. Add excess copper(II) oxide to the acid, filter, then heat the filtrate gently and leave to crystallise
  3. Add the acid to excess copper(II) oxide, decant, then evaporate to dryness
  4. Titrate the acid with copper(II) oxide using an indicator, then evaporate to dryness
Show answer & explanation
✓ Answer: BAdd excess copper(II) oxide to the acid, filter, then heat the filtrate gently and leave to crystallise
Award 1 mark for the correct method: adding excess insoluble base, filtering to remove excess, then evaporating gently and allowing crystallisation. A is incorrect because evaporating to dryness would decompose the crystals and leave anhydrous salt. C is incorrect because decanting would not remove all the excess solid. D is incorrect because copper(II) oxide is insoluble and cannot be used in a titration; also, indicator would contaminate the product.
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CIE IGCSE Chemistry: Preparation of salts (precipitation, titration, reaction of acid with metal/carbonate/base) FAQ

How many CIE IGCSE Chemistry questions on Preparation of salts (precipitation, titration, reaction of acid with metal/carbonate/base) are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Preparation of salts (precipitation, titration, reaction of acid with metal/carbonate/base) for CIE IGCSE 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 CIE 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 CIE IGCSE 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 Preparation of salts (precipitation, titration, reaction of acid with metal/carbonate/base) practice with other Chemistry topics or even switch to a totally different CIE 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 Preparation of salts (precipitation, titration, reaction of acid with metal/carbonate/base) questions aligned to the official CIE IGCSE Chemistry syllabus?
Every question is written against the published CIE IGCSE Chemistry specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real CIE 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 CIE.
How is Preparation of salts (precipitation, titration, reaction of acid with metal/carbonate/base) typically tested on CIE IGCSE Chemistry papers?
Preparation of salts (precipitation, titration, reaction of acid with metal/carbonate/base) appears across multiple question types on real CIE IGCSE 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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