EXAMIANS
Commercial fertilisers are available mostly in the form of
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Reaction of __________ acid with phosphate rock produces superphosphates.
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Prilling tower is found in the flowsheet for the manufacture of
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H₃PO₄ is the chemical formula of __________ phosphoric acid.
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In the manufacture of urea, the intermediate chemical formed is
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The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about __________ percent.
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Which of the following solvents is used for the extraction of H₃PO₄ from CaCl₂ solution during manufacture of ortho-phosphoric acid by wet process employing hydrochloric acid leaching?
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Fertiliser plant making ammonium sulphate employing gypsum-ammonia reaction (usual practice is to use ammonia and sulphuric acid) is located at
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In an ammonia plant, the purge off is essential to
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Reaction of nitric acid and sulphuric acid with phosphate rock produces
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