Question detail

For Neutralisation of acids and salt production, which reaction focus answer best supports this Unit 4.4 objective: Write balanced symbol equations for neutralisation reactions when formulae are supplied?

Try the question, check the answer, then read the explanation to understand the curriculum point.

At a glance

MCQ

Type

practice

Style

Topic

Reactions of acids

Question

  1. A. Sodium chloride and water - correct reaction focus for neutralisation
  2. B. Wrong reaction focus: confuses neutralisation with a nearby Unit 4.4 chemical change idea
  3. C. Wrong particle check: uses the wrong ion, electrode, acid-base term, or product for Neutralisation of acids and salt production
  4. D. Wrong reaction link: does not support Write balanced symbol equations for neutralisation reactions when formulae are supplied

Answer

The correct option is Sodium chloride and water - correct reaction focus for neutralisation.

Explanation

The correct option is Sodium chloride and water - correct reaction focus for neutralisation. Sodium chloride and water - correct reaction focus for neutralisation is correct because it directly supports the approved learning objective to write balanced symbol equations for neutralisation reactions when formulae are supplied. This reaction focus variant asks students to separate neutralisation from similar Unit 4.4 chemical-change ideas. The reasoning belongs to Neutralisation of acids and salt production within Reactions of acids, so it should not be confused with nearby ideas about acids, alkalis, bases, oxidation, reduction, displacement, reactivity, electrolysis, electrodes, ions, pH, or salt preparation unless those are named in the objective. Use the focus term neutralisation to keep the answer aligned with AQA GCSE Chemistry 8462 Unit 4.4 Chemical changes. Keep acid, alkali and base distinct; keep oxidation and reduction distinct; do not mix reduction with displacement; keep electrolysis separate from electroplating; distinguish anode from cathode, positive ions from negative ions, oxidation state from ionic charge, and strong acid from concentrated acid. The other options are weaker because they either use the wrong reaction type, wrong ion, wrong electrode, wrong acid-base distinction, vague wording, or the wrong chemical-change context.

Common mistake

Common Mistake in Writing Balanced Equations

Students often forget to balance the number of atoms of each element on both sides of the equation when writing balanced symbol equations for neutralisation reactions.

To fix this, carefully count the number of atoms of each element in the reactants and products, and adjust the coefficients to ensure they are equal on both sides.

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