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HomeAQA GCSE ChemistryChemical analysis: tests for anions (carbonates, sulfates, halides)
AQA · GCSE · Chemistry

Chemical analysis: tests for anions (carbonates, sulfates, halides)
Practice Questions

20 AQA GCSE Chemistry questions on Chemical analysis: tests for anions (carbonates, sulfates, halides), each with instant feedback and a full examiner-style mark scheme.

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Try 2 sample questions on Chemical analysis: tests for anions (carbonates, sulfates, halides)

Question 1 · 1 mark · Difficulty 1/3

Which reagent is added first when testing for sulfate ions in a solution?

  1. Dilute hydrochloric acid
  2. Dilute nitric acid
  3. Dilute sulfuric acid
  4. Dilute ethanoic acid
Show answer & explanation
✓ Answer: ADilute hydrochloric acid
Dilute hydrochloric acid is added first to acidify the solution and remove any carbonate ions that could give a false positive precipitate. Barium chloride solution is then added; a white precipitate of barium sulfate confirms sulfate ions.
Question 2 · 1 mark · Difficulty 1/3

A student adds silver nitrate solution acidified with dilute nitric acid to an unknown solution and observes a cream precipitate. Which ion is present?

  1. Chloride ion
  2. Bromide ion
  3. Iodide ion
  4. Sulfate ion
Show answer & explanation
✓ Answer: BBromide ion
A cream precipitate with acidified silver nitrate solution indicates silver bromide has formed, confirming the presence of bromide ions. Chloride gives white, iodide gives yellow, and sulfate does not react with silver nitrate to give a coloured precipitate.
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AQA GCSE Chemistry: Chemical analysis: tests for anions (carbonates, sulfates, halides) FAQ

How many AQA GCSE Chemistry questions on Chemical analysis: tests for anions (carbonates, sulfates, halides) are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Chemical analysis: tests for anions (carbonates, sulfates, halides) for AQA GCSE 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 AQA 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 AQA GCSE 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 Chemical analysis: tests for anions (carbonates, sulfates, halides) practice with other Chemistry topics or even switch to a totally different AQA 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 Chemical analysis: tests for anions (carbonates, sulfates, halides) questions aligned to the official AQA GCSE Chemistry syllabus?
Every question is written against the published AQA GCSE Chemistry specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real AQA 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 AQA.
How is Chemical analysis: tests for anions (carbonates, sulfates, halides) typically tested on AQA GCSE Chemistry papers?
Chemical analysis: tests for anions (carbonates, sulfates, halides) appears across multiple question types on real AQA GCSE 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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