Q1: Reaction of calcium fluorapatite with sulphuric acid produces

ANS:B - simple superphosphate.

Simple superphosphate is a type of fertilizer that is produced by treating phosphate rock with sulfuric acid. The reaction between phosphate rock (which typically contains calcium phosphate) and sulfuric acid results in the formation of water-soluble monocalcium phosphate. The chemical equation for the reaction is: Ca3(PO4)2+H2SO4→CaH4(PO4)2+CaSO4Ca3​(PO4​)2​+H2​SO4​→CaH4​(PO4​)2​+CaSO4​ In this reaction, calcium phosphate in the phosphate rock reacts with sulfuric acid to form monocalcium phosphate and calcium sulfate (gypsum). The monocalcium phosphate is water-soluble, which means it can be readily absorbed by plants. Simple superphosphate typically contains around 16% phosphorus pentoxide (P2O5) as the primary nutrient. This phosphorus content makes it an effective fertilizer for promoting root development, flowering, and fruiting in plants. Additionally, simple superphosphate may contain small amounts of other nutrients such as sulfur, calcium, and trace elements, depending on the specific manufacturing process. One of the advantages of simple superphosphate is its relatively rapid availability to plants, as the phosphorus it contains is in a water-soluble form. However, its phosphorus content is lower than that of other phosphate fertilizers like triple superphosphate, which may necessitate larger application rates to meet plant requirements.