WAEC Chemistry 2025 Objective — Question 14
Question 14 of 50 from the West African Examinations Council (WAEC) Chemistry 2025 Objective paper, with the correct answer and a full explanation.
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The metal carbonate that would not decompose when heated strongly is
- A. Al2(CO3)3
- B. CaCO3
- C. MgCO3
- D. Na2CO3Correct
Explanation
Unlike other metal carbonates, Group I carbonates (like Na2CO3 and K2CO3) are very stable to heat and do not decompose on strong heating.
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