Q. Reaction of calcium fluorapatite with sulphuric acid produces

View solution

Q. Which of the following is not a commercially used feed-stock for the production of ammonia synthesis gas?

View solution

Q. Fertiliser value of a nitrogeneous fertiliser is expressed in terms of its __________ content.

View solution

Q. Triple superphosphate is made by reacting phosphate rock with __________ acid.

View solution

Q. C/H ratio (by weight) of naphtha used in nitrogenous fertiliser making is about

View solution

Q. Raw materials for urea production are

View solution

Q. Which of the following is not a mixed fertiliser ?

View solution

Q. Chemical formula of metaphosphoric acid is

View solution

Q. Low grade coal is __________ to produce ammonia synthesis gas.

View solution

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

View solution

Q. Effectiveness of a fertiliser is independent of the

View solution

Q. Which nutrient in fertiliser makes the plant stems stronger and increases branching ?

View solution

Q. Optimum reaction temperature in steam reforming of naphtha is __________ °C.

View solution

Q. Which of the following is a natural inorganic fertiliser ?

View solution

Q. Oxidation of ammonia is

View solution

Q. Reaction of orthophosphoric acid with phosphate rock produces

View solution

Q. Flushing liquor used for cooling coke oven gas constitutes of

View solution

Q. Temperature and pressure in ammonia converter is

View solution

Q. pH value of soil is maintained at __________ by the addition of fertiliser for optimum growth and health of the plant.

View solution

Q. Yield of elemental phosphorous from rock phosphate is about __________ percent.

View solution