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.
This question appeared on the UHS MDCAT 2008 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Practise s-Block and p-Block Elements
1,359 free s-Block and p-Block Elements MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Reactions of Group II Elements questions
Which of the following does not react with water?
Magnesium reacts with hydrogen at high pressure in the presence of catalyst _ forming magnesium hydride.
The general name of ore CaSO4.2H2O is:
Which metal occurs as skeletal material in egg shells?
At which condition are hydrides of alkaline earth metals formed:
Asbestos is hydrated _ magnesium silicate.