Chemistry 0620 · IGCSE · The characteristic properties of acids and bases

The characteristic properties of acids and bases — practice question

Compound X is soluble in water, producing an aqueous solution. Methyl orange is then introduced into the aqueous compound X. The methyl orange becomes red. What is compound X?

Asodium carbonate
Bcopper(II) oxide
Cpotassium oxide
Dsulfur dioxide

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