A. Reduced iron oxide
B. Nickel
C. Vanadium pentoxide
D. Silica gel
A. Corrosive in nature
B. Toxic and harmful to some crops
C. Helpful in decomposition of urea
D. Explosive in nature
A. Osmotic pressure of the soil water becomes less than that of the plant sap
B. Soil becomes too alkaline
C. Osmotic pressure of the soil water becomes higher than that of the plant sap
D. Soil becomes too acidic
A. It is hygroscopic and explosive in nature
B. It is highly acidic in nature
C. It is a liquid at room temperature
D. Its nitrogen content is very less
A. Carbonate
B. Phosphate
C. Bicarbonate
D. Silicate
A. Nitric acid
B. Ammonia
C. Ammonium nitrate
D. Nitric oxide
A. 250-300
B. 500-750
C. 950-1050
D. 1400-1450