Ammonium nitrate (a fertiliser) is coated with limestone powder to Cut down its production cost Increase its nitrogen content Avoid the risk of explosion Add extra nutrient as fertiliser TRUE ANSWER : ? YOUR ANSWER : ?
Reaction of orthophosphoric acid with soda ash produces Tricresyl phosphate Nitrophosphate Tributyl phosphate Sodium tripolyphosphate (STPP) TRUE ANSWER : ? YOUR ANSWER : ?
Hydrogen is recovered from coke oven gas on commercial scale (as practised in fertiliser plant at Rourkela) by Cryogenic operations (low temperature cooling) None of these Absorption (using ethanolamine or pyragalloll solution) Adsorption on palladium TRUE ANSWER : ? YOUR ANSWER : ?
Dehydration of ammonium carbamate produces Ammonia water None of these Biuret Urea TRUE ANSWER : ? YOUR ANSWER : ?
Triple superphosphate which contains about 46% P₂O₅ is produced by the reaction of phosphate rock with ortho phosphoric acid of____percent concentration. 75-80 52-54 25-28 > 98 TRUE ANSWER : ? YOUR ANSWER : ?
Nitrogen content in ammonium sulphate (a fertiliser) is around __________ percent. 50 65 20 5 TRUE ANSWER : ? YOUR ANSWER : ?
Reaction of __________ acid with phosphate rock produces superphosphates. Phosphoric Sulphuric Nitric Hydrochloric TRUE ANSWER : ? YOUR ANSWER : ?
Reaction of dilute sulphuric acid with phosphate rock produces Gypsum Phosphoric acid Superphosphate Triple superphosphate TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following does not come under the category of'primary nutrient' for plant growth? Nitrogen Sulphur Potassium Phosphorous TRUE ANSWER : ? YOUR ANSWER : ?