Question

A salt is made by adding an excess of an insoluble metal oxide to an acid.

How can the excess metal oxide be removed? *

D filtration
B crystallisation
A chromatography
C distillation

Answer 1

Filtration

Step-by-step explanation:

Filtration is used to separate solid substances from liquids or large molecules from small molecules. Since, Acid is a liquid and metal oxide is solid so Filtration can be used to separate these two.