CaO forms fertilize slag by reacting with:
Correct answer: A. P2O5
- A. P2O5
- B. Fe2O3
- C. Silica
- D. FO
Explanation
a) P2O5 (Phosphorus Pentoxide): This is the correct option. Calcium oxide (CaO) reacts with phosphorus pentoxide (P2O5) to form calcium phosphate (Ca3(PO4)2), which is a component of fertilizers and is commonly used to improve soil fertility.
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About Reactions of Group II Elements
Group II reactions cover the behaviour of beryllium, magnesium, calcium, strontium and barium with water, oxygen, halogens, acids and nitrogen. The trends in reactivity, hydroxide solubility and basicity, along with the thermal decomposition of carbonates and nitrates, depend on increasing atomic size down the group.
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