Though liquid ammonia itself is a fertiliser (with 82% nitrogen content) yet it is commonly not used as such in a tropical country like India, because it Is in short supply Vaporises at normal temperature Is toxic and highly corrosive Has a pungent smell TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following nitrogenous fertilisers has the highest percentage of nitrogen? Calcium ammonium nitrate (CAN) Ammonium sulphate Urea Calcium nitrate TRUE ANSWER : ? YOUR ANSWER : ?
Ammonium sulphate fertiliser is A basic fertiliser The best fertiliser for paddy The highest concentration nitrogenous fertiliser A neutral fertiliser TRUE ANSWER : ? YOUR ANSWER : ?
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? Toluene Hexane Butyl alcohol Iso propyl alcohol TRUE ANSWER : ? YOUR ANSWER : ?
Liquid ammonia is not used as such a fertiliser in tropical countries like India, because It will evaporate on spraying Its N₂ content is very low It is very costly It is not available TRUE ANSWER : ? YOUR ANSWER : ?
Rock phosphate constitutes mainly of Di-ammonium phosphate Di-calcium phosphate Mono-calcium phosphate Fluorapatite TRUE ANSWER : ? YOUR ANSWER : ?
Urea is formed only At very high temperature In vapour phase In liquid phase At very low pressure (vacuum) TRUE ANSWER : ? YOUR ANSWER : ?
Ammonium sulphate can be produced by reacting gypsum with Ammonia Ammonium carbonate None of these Nitric acid TRUE ANSWER : ? YOUR ANSWER : ?