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Pick out the wrong statement. | |
A. | Dehydration of ammonium carbamate to produce urea is endothermic. [Wrong Answer] |
B. | Direct use of liquid ammonia as a fertiliser for a tropical country like India is suitable. [Correct Answer] |
C. | Gypsum (CaSO4. 2H2O) is obtained as a by-product in the wet process for manufacture of ortho-phosphoric acid. [Wrong Answer] |
D. | Phosphate rock when reacted with dilute H2SO4 produces superphosphate. [Wrong Answer] |