What is the chemical name of limestone?

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What is the chemical name of limestone? Answer: Calcium Carbonate

The chemical name for the main component of limestone is calcium carbonate, with the chemical formula CaCO₃. Limestone is a sedimentary rock composed primarily of this compound, though it may also contain smaller amounts of other minerals like dolomite (calcium magnesium carbonate) and impurities such as silica.

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This question is part of 🔬 General Science within the broader 🌐 Current Affairs & GK subject and appears in the ASF Airports Security Force preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.