Learning objective

Categorize oxides into two groups: acidic oxides such as SO₂ and CO, and basic oxides like CuO and CaO, based on their metallic and non-metallic properties.

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Exam focus

Cambridge IGCSE Combined ScienceAcids, bases and saltsCore content

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Quick explanation

This point belongs to Oxides, especially Oxides outcomes.
You need to be able to categorize oxides into two groups: acidic oxides such as SO₂ and CO, and basic oxides like CuO and CaO, based on their metallic and non-metallic properties.
The key ideas to know are Define, Identify, and Compare.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

DefineIdentifyCompareDescribe

Why it matters

This objective helps connect Oxides outcomes to exam-style questions, flashcards, and revision notes for Oxides.

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Paper 3Theory (Core)2 marks

Description

Oxides can be classified into acidic and basic oxides based on their chemical properties.

a
Define acidic oxides and give two examples.
Your answer
Aim for approximately 2 distinct marking points.
[2]

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