EXAMIANS
Hydrogen content of coke oven gas is __________ percent.
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Ammonium sulphate can be produced by reacting gypsum with
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Yield of urea can be increased with excess ammonia and higher pressure & temperature, but because of __________ this is normally not done.
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Though liquid ammonia itself is a fertiliser (with 82% nitrogen content) yet it is commonly not used as such in a tropical country like India, because it
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Heating of coke, sand & phosphate rock in an electric furnace is done for the manufacture of
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Which of the following set of conditions is favourable for the maximum yield of ammonia by Haber's process?
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Bio-fertilisers are cheaper, renewable and pollution free. They improve the __________ of the soil.
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Main constituent of phosphate rock is
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H₃PO₄ is the chemical formula of __________ phosphoric acid.
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Commercial fertilisers are available mostly in the form of
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