Related Questions

Steel produced from phosphatic iron is __________ in nature.
A Malleable
B Ductile
C Brittle
D Tough
Phosphatic fertiliser is graded based on its __________ content.
A P2O3
B PCl5
C P2O5
D H3PO4
Rock phosphate used for the production of phosphatic fertiliser is mined at
A Amjhor (Jharkhand)
B Talchar (Orissa)
C Bailladella (M.P.)
D Kiriburu (Bihar)
Which of the following fertilisers contains the least percentage of nitrogen?
A Liquid ammonia
B Urea
C Ammonium phosphate
D Ammonium sulphate
Commercial fertilisers are available mostly in the form of
A Powder
B Grannules
C Lumps
D Flakes
Bio-fertilisers are cheaper, renewable and pollution free. They improve the __________ of the soil.
A Nutrient supply
B Texture
C Water holding capacity
D All of the above
Which of the following is not a measure component necessarily to be present in fertilisers?
A Nitrogen
B Potassium
C Phosphorous
D Sulphur
Which of the following fertilisers is needed for promoting the development of leaves and stems during early stages of plant growth?
A Nitrogeneous fertiliser
B Potassic fertiliser
C Phosphatic fertiliser
D None of these
Commercial production of hydrogen for the manufacture of nitrogeneous fertilisers is done by
A Steam reforming of naphtha and cracking of natural gas
B Electrolysis of water
C Cryogenic separation of hydrogen from coke oven gas
D All of the above
Which of the following nitrogenous fertilisers has the highest percentage of nitrogen?
A Calcium nitrate
B Calcium ammonium nitrate (CAN)
C Urea
D Ammonium sulphate

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