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2017 O Level Chem P1 Q22 — Acids Bases and Salts / Oxides Solution

Acids Bases and Salts / Oxides 2017 O Level Pure Chemistry · Paper 1 · Q22

Question

Which statement about oxides is correct?

AA basic oxide is an oxide of a non-metal.
BAcidic oxides contain ionic bonds.
CAmphoteric oxides contain a metal.
DBasic oxides are always gases.

Correct answer: C

Video Solution

Explanation

Answer: C. Amphoteric oxides, such as aluminium oxide and zinc oxide, are oxides of metals, so an amphoteric oxide contains a metal.

A is wrong (basic oxides are metal oxides, not non-metal). B is wrong (acidic oxides are non-metal oxides with covalent bonding). D is wrong (basic oxides such as metal oxides are solids).

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