Heating of coke, sand & phosphate rock in an electric furnace is done for the manufacture of
Monte catini process is a widely used process for the manufacture of
Pick out the wrong statement.
Fertiliser produced during soda ash manufacture by dual process is ammonium
Which of the following does not come under the category of 'micro-nutrient' for plant growth?
Reaction of __________ acid with phosphate rock produces superphosphates.
Reaction of nitric acid and sulphuric acid with phosphate rock produces
P2O5 content in superphosphate is about __________ percent.
In an ammonia plant, the purge off is essential to
The composition of fresh feed to the high temperature, high pressure urea autoclave is
Hydrogen is recovered from coke oven gas on commercial scale (as practised in fertiliser plant at Rourkela) by
Neutralisation of nitric acid with ammonia to produce ammonium nitrate is a/an __________ reaction.
Temperature and pressure in urea autoclave is
Maximum stability of white phosphorous is at
Heating of orthophosphoric acid to about 900°C, produces
Which of the following fertilisers is required for the development of fibrous materials of the plants and of the sugar of vegetable & fruits ?
__________ is required more for leafy crops.
The most suitable fertiliser for accelerating seeding or fruit formation in later stages of plant growth is __________ fertiliser.
Potassic fertilisers do not promote the development of
Reaction of phosphate rock withH2SO4 produces
NPK fertiliser is a __________ fertiliser.
The fertiliser plant getting hydrogen by electrolysis of water is situated at
Triple superphosphate is chemically represented as
Phosphatic fertilisers
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?
Excessive use of chemical fertilisers causes shrivelling of the roots and wilting of the plant, because the
The optimum size of the ammonia plant is __________ tons/day.
I argest capacity nitrogenous fertiliser plants (tons of NH3 per day) (2 Nos) in India are located at
Which of the following is the costliest method for commercial production of hydrogen for ammonia synthesis ?
Potassic fertiliser is graded based on its __________ content.