Q. Phosphoric acid is produced in wet process from phosphate rock and

View solution

Q. Base suspension fertiliser essentially contains

View solution

Q. Conditioners like finely divided peat are added to the fertiliser to

View solution

Q. Liquid ammonia is not used as such a fertiliser in tropical countries like India, because

View solution

Q. Pick out the wrong statement.

View solution

Q. Which of the following does not come under the category of 'secondary nutrient' for plant growth?

View solution

Q. Steam reforming of naphtha is a source of hydrogen production for nitrogeneous fertiliser industry. What is the usual ratio of steam to carbon maintained in the process of steam reforming of naphtha ?

View solution

Q. (CH₃C₆H₄)₃PO₄ is the chemical formula of

View solution

Q. Which is a catalyst promoter used in catalytic ammonia synthesis reaction ?

View solution

Q. Phosphorus vapour comprises of

View solution

Q. Conversion of yellow phosphorous to red phosphorous is done by heating it in covered retorts at __________ °C in absence of air.

View solution

Q. Commercial fertilisers are available mostly in the form of

View solution

Q. Pick out the wrong statement.

View solution

Q. Ammonia synthesis gas is produced from natural gas by

View solution

Q. P₂O₅ content in triple superphosphate is about __________ percent.

View solution

Q. H₃PO₄ is the chemical formula of __________ phosphoric acid.

View solution

Q. Heating of orthophosphoric acid to 250°C produces

View solution

Q. Vapor phase reaction of ammonia & nitric acid to produce ammonium nitrate is termed as the __________ process.

View solution

Q. 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.

View solution

Q. The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about __________ percent.

View solution