Which of the fertilizer contains citric acid soluble phosphoric acid? (RJ ASCO 2011)

✅Explanation:
Basic slag is a byproduct of steel manufacturing and is used as a fertilizer.
-Phosphorus Source: It contains phosphorus in a form that is soluble in citric acid, making it more available to plants compared to rock phosphate.
-Slow Release: Basic slag releases phosphorus gradually, providing a long-term supply to crops.
-Liming Effect: It also has a liming effect, helping to raise soil pH in acidic conditions.

🔑Key Points::
Slag is a product of Flux and impurities.
-Slag is a product of Flux and impurity.
-Slag is a waste matter separated from metal during smelting and other metallurgical and combustion processes from impurities in the metals. 
-The iron and silica is an example of slag that is removed during copper and lead smelting.
-In steel-making furnaces, during the separation of the molten steel from impurities produced steel slag.
-Slags are divided into two part blast furnace slag and metallurgical slag.
-The slag consists mostly of mixed oxides of elements such as silicon, sulfur, phosphorus, and aluminium.​​