Identification of calcium carbonate can be easily done by the addition of some dilute acids.
When acid such as sulfuric acid or hydrochloric acid is added to the compound and it liberates brisk effervescence of the carbon dioxide then it is a confirmatory test that a carbonate salt is present in the compound.
Question : The chemical that is used to ripen mangoes is
Option 1: calcium sulphide
Option 2: calcium carbide
Option 3: calcium carbonate
Option 4: calcium chloride
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