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Verified Answer & Explanation⌄

Correct Answer: B) 12%

Concept Explanation

Molar mass of CaCO₃ ≈ 40 + 12 + 48 = 100 g mol⁻¹. Carbon mass = 12 g. Percentage C = (12/100) × 100 = 12%.

Topic: Percentage Composition by MassPractice more Percentage Composition by Mass MCQs →
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