EXAMIANS
Heating of orthophosphoric acid to 250°C produces
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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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Biuret formation in urea is kept at minimum (< 1 %), because it is
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Prilling tower is found in the flowsheet for the manufacture of
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Dehydration of ammonium carbamate to yield urea is a/an __________ reaction.
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Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at __________ °C in absence of air.
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Ammonium sulphate can be produced by reacting gypsum with
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The composition of fresh feed to the high temperature, high pressure urea autoclave is
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Which of the following nitrogenous fertilisers has the highest percentage of nitrogen?
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Naphtha in a fertiliser plant is used as a source of
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