Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Chemical Reaction
When calcium metal reacts with sulphuric acid, the reaction stops after a short while. Why?
1
The reaction of calcium with sulphuric acid is not feasible at room temperature
2
Formed calcium sulphate is insoluble in water and covers the calcium metal, preventing it from reacting any further
3
Formed calcium sulphate requires two molecules of water to crystallize as gypsum
4
More than one of the above
5
None of the above