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9 January, 14:24

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

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Answers (1)
  1. 9 January, 15:28
    0
    Filtration

    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.
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