Chemistry · Chemical Reactions and Equations
When calcium metal reacts with sulphuric acid, the reaction stops after a short while. Why?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The reaction of calcium with sulphuric acid is not feasible at room temperature
- 2The formed calcium sulphate is insoluble in water and covers the calcium metal, preventing further reaction✓
- 3The formed calcium sulphate requires two molecules of water to crystallize as gypsum
- 4The formed calcium sulphate is highly unstable and decomposes immediately
Correct answer
The formed calcium sulphate is insoluble in water and covers the calcium metal, preventing further reaction
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