CAIE IGCSE Chemistry 7.2 Oxides Topic Practice

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Covered syllabus points

7.2.1—Classify oxides as acidic7.2.2—Amphoteric oxides as oxides that react7.2.3—Classify Al 2O3 and ZnO as amphoteric

Question 1

[Maximum number: 1]

Which oxides are basic?
1 calcium oxide
2 sodium oxide
3 iron(II) oxide

A

1, 2 and 3

B

1 and 2 only

C

2 and 3 only

D

3 only

Question 2

[Maximum number: 1]

This question is about metals.

Zinc oxide neutralises both acids and bases.

State the general name given to oxides that neutralise both acids and bases.

Question 3

[Maximum number: 1]

Which element forms an amphoteric oxide?

A

aluminium

B

carbon

C

magnesium

D

silicon

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