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Which oxide is classified as an amphoteric oxide?

A.
aluminium oxide
B.
calcium oxide
C.
copper(II) oxide
D.
nitrogen oxide
Chemistry
IGCSE&ALevel
CAIE
Exam No：0620_s23_qp_21 Year：2023 Question No：16

Answer:

A

Knowledge points:

7.2.1. Classify oxides as acidic
7.2.2. Describe amphoteric oxides as oxides that react with acids and with bases to produce a salt and water
7.2.3. Classify

Solution:

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