Question:
Triple superphosphate is manufactured by reacting
Triple superphosphate is manufactured by reacting
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Triple superphosphate is made by treating phosphate rock with phosphoric acid, while single superphosphate uses sulphuric acid.
Updated On: May 27, 2026
- Phosphate rock with phosphoric acid
- Phosphate rock with sulfuric acid
- Phosphate rock with nitric acid
- Ammonium phosphate with phosphoric acid
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The Correct Option is A
Solution and Explanation
Triple superphosphate is a concentrated phosphate fertilizer.
It mainly contains monocalcium phosphate.
It is manufactured by reacting phosphate rock with phosphoric acid.
The simplified reaction may be written as:
\[
Ca_3(PO_4)_2+4H_3PO_4\rightarrow 3Ca(H_2PO_4)_2.
\]
Phosphate rock is mainly calcium phosphate.
Phosphoric acid converts insoluble calcium phosphate into water-soluble monocalcium phosphate.
This makes phosphorus available for plant use.
Single superphosphate is manufactured by treating phosphate rock with sulphuric acid.
Triple superphosphate uses phosphoric acid instead of sulphuric acid.
Therefore, triple superphosphate is manufactured by reacting:
\[
\text{Phosphate rock with phosphoric acid}.
\]
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