In the manufacture of orthophosphoric acid by strong H₂SO₄ leaching wet process, keeping the reactor temperature above 100°C, results in the formation of undesriable All of these Pyrophosphoric acid CaSO₄ .½H₂O and CaSO₄ crystals Metaphosphoric acid TRUE ANSWER : ? YOUR ANSWER : ?
Ammonium sulphate fertiliser is The best fertiliser for paddy The highest concentration nitrogenous fertiliser A basic fertiliser A neutral fertiliser TRUE ANSWER : ? YOUR ANSWER : ?
Ammonium nitrate (is mixed with limestone) is not used as fertiliser as such, because It is highly acidic in nature It is a liquid at room temperature Its nitrogen content is very less It is hygroscopic and explosive in nature TRUE ANSWER : ? YOUR ANSWER : ?
__________ is the most suitable fertiliser for paddy. Urea Potassium nitrate Superphosphate Ammonium sulphate TRUE ANSWER : ? YOUR ANSWER : ?
Reaction of cresylic acid with __________ produces tricresyl phosphate. Phosphorous oxychloride Calcium phosphate Phosphorous pentoxide Ammonium phosphate TRUE ANSWER : ? YOUR ANSWER : ?
Which is a catalyst promoter used in catalytic ammonia synthesis reaction? K₂O MnO Al₂O₃ Cr₂O₃ TRUE ANSWER : ? YOUR ANSWER : ?
Phosphoric acid is produced in wet process from phosphate rock and Concentrated HCl Dilute H₂SO₄ Concentrated H₂SO₄ Concentrated NHO₃ TRUE ANSWER : ? YOUR ANSWER : ?
Nitro-phosphate (manufactured at Trom-bay) is a __________ fertiliser. Highly hygroscopic Highly explosive Mixed Complex TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following does not come under the category of 'micro-nutrient' for plant growth? Iron Carbon Chlorine Boron TRUE ANSWER : ? YOUR ANSWER : ?
Which is the most suitable fertiliser for paddy? Superphosphate Ammonium nitrate Ammonium sulphate CAN TRUE ANSWER : ? YOUR ANSWER : ?