{"@context":"https://schema.org/","@type":"Quiz","dateCreated":"2026-07-06T12:39:21.998Z","dateModified":"2026-07-06T12:39:21.998Z","typicalAgeRange":"11-18","educationalLevel":"ICAR AIEEA (PG)","assesses":"Agronomy - Soil Nutrient ","educationalAlignment":[{"@type":"AlignmentObject","alignmentType":"educationalTopic","targetName":"Soil Nutrient "},{"@type":"AlignmentObject","alignmentType":"educationalSubject","targetName":"Agronomy"},{"@type":"AlignmentObject","alignmentType":"educationalExam","targetName":"ICAR AIEEA (PG)"}],"name":"Quiz about Soil Nutrient ","about":{"@type":"Thing","name":"Agronomy - Soil Nutrient "},"hasPart":[{"@type":"Question","eduQuestionType":"Multiple choice","learningResourceType":"Practice problem","educationalLevel":"intermediate","name":"Question About Soil Nutrient ","text":"For commercial production of DAP (Diammonium phosphate), liquid ammonia is reacted with mineral acid}","encodingFormat":"text/markdown","comment":{"@type":"Comment","text":"To remember chemical fertilizer compositions: \n- Ammonia + Nitric Acid \\(\\rightarrow\\) Ammonium Nitrate \n- Ammonia + Sulphuric Acid \\(\\rightarrow\\) Ammonium Sulphate \n- Ammonia + Phosphoric Acid \\(\\rightarrow\\) Ammonium Phosphate (DAP/MAP)"},"suggestedAnswer":[{"@type":"Answer","position":0,"encodingFormat":"text/markdown","text":"

Nitric acid (\\(\\text{HNO}_3\\))

","comment":{"@type":"Comment","text":"\"\""}},{"@type":"Answer","position":1,"encodingFormat":"text/markdown","text":"

Sulphuric acid (\\(\\text{H}_2\\text{SO}_4\\))

","comment":{"@type":"Comment","text":"\"\""}},{"@type":"Answer","position":2,"encodingFormat":"text/markdown","text":"

Hydrochloric acid (\\(\\text{HCl}\\))

","comment":{"@type":"Comment","text":"\"\""}},{"@type":"Answer","position":3,"encodingFormat":"text/markdown","text":"

Phosphoric acid (\\(\\text{H}_3\\text{PO}_4\\))\n\n

","comment":{"@type":"Comment","text":"\"\""}}],"acceptedAnswer":{"@type":"Answer","position":3,"encodingFormat":"text/markdown","text":"

Phosphoric acid (\\(\\text{H}_3\\text{PO}_4\\))\n\n

","comment":{"@type":"Comment","text":"To remember chemical fertilizer compositions: \n- Ammonia + Nitric Acid \\(\\rightarrow\\) Ammonium Nitrate \n- Ammonia + Sulphuric Acid \\(\\rightarrow\\) Ammonium Sulphate \n- Ammonia + Phosphoric Acid \\(\\rightarrow\\) Ammonium Phosphate (DAP/MAP)"},"answerExplanation":{"@type":"comment","text":""}}}]}

For commercial production of DAP (Diammonium phosphate), liquid ammonia is reacted with mineral acid

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The Correct Option is D

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