# Copper(II) oxide and carbon monoxide are both oxides. Describe how each oxide behaves chemically and state the classification of each.

> Cambridge International IGCSE Chemistry (0620) — 7.2 Oxides · Describe · 4 marks

## Mark scheme (4 marks)

1. Copper(II) oxide reacts with acids (to form a salt and water)
2. Copper(II) oxide is classified as a basic oxide
3. Carbon monoxide does not react with acids or bases / does not neutralise acids or bases
4. Carbon monoxide is classified as a neutral oxide

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