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Learning objective

Recall that iron(II) ions form a green precipitate with sodium hydroxide.

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Topic

Identification of ions by chemical and spectroscopic means

Subtopic

Metal hydroxide precipitate tests

Aqa Gcse ChemistryChemical analysis

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Quick explanation

Recall that iron(II) ions form a green precipitate with sodium hydroxide

  • This point belongs to Identification of ions by chemical and spectroscopic means, especially Metal hydroxide precipitate tests.
  • You need to be able to recall that iron(II) ions form a green precipitate with sodium hydroxide.
  • The key ideas to know are sodium hydroxide, precipitate, and iron(II).
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

sodium hydroxideprecipitateiron(II)green precipitate

Why it matters

This objective helps connect Metal hydroxide precipitate tests to exam-style questions, flashcards, and revision notes for Identification of ions by chemical and spectroscopic means.

Quick student answer

What should you know about iron(II) ions form a green precipitate with sodium hydroxide?

Direct answer

In Chemistry, this page helps you answer questions about iron(II) ions form a green precipitate with sodium hydroxide within Identification of ions by chemical and spectroscopic means. Focus on the key process, correct scientific terms, and how the idea links to exam-style questions. Key terms to check are iron(II) ions and green precipitate.

Key terms

  • iron(II) ions: Iron(II) ions are positively charged ions that form a green precipitate when reacted with sodium hydroxide.
  • green precipitate: A green precipitate is the solid formed when iron(II) ions react with sodium hydroxide solution.

Common trap

Iron(II) Ion Precipitate Mistake: Remember that iron(II) ions specifically form a green precipitate with sodium hydroxide, while iron(III) ions form a brown precipitate.

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