EXAMIANS
H₄P₂O₇ is the chemical formula of __________ phosphoric acid.
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Heating of orthophosphoric acid to about 900°C, produces
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Calcium ammonium nitrate (CAN) is
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Naphtha in a fertiliser plant is used as a source of
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Low grade coal is __________ to produce ammonia synthesis gas.
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Phosphatic fertilisers
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Which of the following does not come under the category of 'secondary nutrient' for plant growth?
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Nitrogen content of urea is about __________ percent.
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Use of catalyst is a must in the ammonia manufacture, because the reaction is reversible as well as the heat of dissociation of N₂ & H₂ is high. The presence of promoter along with the catalyst helps in __________ of the catalyst.
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Fertiliser value of a nitrogeneous fertiliser is expressed in terms of its __________ content.
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