Question

The chemical formula of Chalk is:

• A. \( \text{MgCO}_3 \)
• B. \( \text{Na}_2\text{CO}_3 \)
• C. \( \text{CaCO}_3 \)
• D. \( \text{Mg(HCO}_3)_2 \)

Hint:

For inorganic compounds like Calcium Carbonate, knowing the basic formulas for common substances like oxides and carbonates can help in quickly identifying their chemical structures and uses.

Answer 1

The Correct Option is C

The chemical formula for chalk is \( \text{CaCO}_3 \), which is Calcium Carbonate. Chalk is a naturally occurring form of limestone that primarily consists of calcium carbonate.