Physics · Chemical Reactions
Which of the following chemical equations correctly represents the statement: 'Limestone decomposes on heating to give quicklime'?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1CaCO 3 (s) → Ca(OH) 2 (s) + CO 2 (g) + H 2 (g)
- 2CaCO 3 (s) Heat → CaO (s) + CO 2 (g)✓
- 3Ca(OH) 2 (s) → CaO (s) + H 2 O (l) + CO 2 (g)
- 4Ca(OH) 2 (s) → CaCO 3 (s) + H 2 O (l)
Correct answer
CaCO 3 (s) Heat → CaO (s) + CO 2 (g)
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